Home / 2,515.91-3,475.24-1,929.47

Finding the Fourth Proportional to 2,515.91, 3,475.24 and 1,929.47

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Solution

The fourth proportional to 2,515.91, 3,475.24 and 1,929.47 is: 2,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.91 : 3,475.24 = 1,929.47 : x
  2. Step 2: Convert to fraction form
    2,515.91/3,475.24 = 1,929.47/x
  3. Step 3: Cross multiply
    2,515.91x = 3,475.24 × 1,929.47
  4. Step 4: Simplify right side
    2,515.91x = 6,705,349.12
  5. Step 5: Solve for x
    x = 6,705,349.12/2,515.91
  6. Step 6: Final answer
    x = 2,665.18

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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.