Home / 2,755.10-4,124.55-2,431.10

Finding the Fourth Proportional to 2,755.10, 4,124.55 and 2,431.10

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Solution

The fourth proportional to 2,755.10, 4,124.55 and 2,431.10 is: 3,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.10 : 4,124.55 = 2,431.10 : x
  2. Step 2: Convert to fraction form
    2,755.10/4,124.55 = 2,431.10/x
  3. Step 3: Cross multiply
    2,755.10x = 4,124.55 × 2,431.10
  4. Step 4: Simplify right side
    2,755.10x = 10,027,193.51
  5. Step 5: Solve for x
    x = 10,027,193.51/2,755.10
  6. Step 6: Final answer
    x = 3,639.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,756.10, 4,126.05 and 2,432.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.