Home / 1,515.20-2,273.24-637.25

Finding the Fourth Proportional to 1,515.20, 2,273.24 and 637.25

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Solution

The fourth proportional to 1,515.20, 2,273.24 and 637.25 is: 956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.20 : 2,273.24 = 637.25 : x
  2. Step 2: Convert to fraction form
    1,515.20/2,273.24 = 637.25/x
  3. Step 3: Cross multiply
    1,515.20x = 2,273.24 × 637.25
  4. Step 4: Simplify right side
    1,515.20x = 1,448,621.62
  5. Step 5: Solve for x
    x = 1,448,621.62/1,515.20
  6. Step 6: Final answer
    x = 956.06

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Half scale
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Double scale
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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.