Home / 3,420.10-5,130.15-3,204.10

Finding the Fourth Proportional to 3,420.10, 5,130.15 and 3,204.10

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Solution

The fourth proportional to 3,420.10, 5,130.15 and 3,204.10 is: 4,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.10 : 5,130.15 = 3,204.10 : x
  2. Step 2: Convert to fraction form
    3,420.10/5,130.15 = 3,204.10/x
  3. Step 3: Cross multiply
    3,420.10x = 5,130.15 × 3,204.10
  4. Step 4: Simplify right side
    3,420.10x = 16,437,513.62
  5. Step 5: Solve for x
    x = 16,437,513.62/3,420.10
  6. Step 6: Final answer
    x = 4,806.15

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Half scale
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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.