Home / 3,009.98-4,153.70-1,815.10

Finding the Fourth Proportional to 3,009.98, 4,153.70 and 1,815.10

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Solution

The fourth proportional to 3,009.98, 4,153.70 and 1,815.10 is: 2,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.98 : 4,153.70 = 1,815.10 : x
  2. Step 2: Convert to fraction form
    3,009.98/4,153.70 = 1,815.10/x
  3. Step 3: Cross multiply
    3,009.98x = 4,153.70 × 1,815.10
  4. Step 4: Simplify right side
    3,009.98x = 7,539,380.87
  5. Step 5: Solve for x
    x = 7,539,380.87/3,009.98
  6. Step 6: Final answer
    x = 2,504.79

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.