Home / 1,915.92-2,642.22-1,252.53

Finding the Fourth Proportional to 1,915.92, 2,642.22 and 1,252.53

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Solution

The fourth proportional to 1,915.92, 2,642.22 and 1,252.53 is: 1,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.92 : 2,642.22 = 1,252.53 : x
  2. Step 2: Convert to fraction form
    1,915.92/2,642.22 = 1,252.53/x
  3. Step 3: Cross multiply
    1,915.92x = 2,642.22 × 1,252.53
  4. Step 4: Simplify right side
    1,915.92x = 3,309,459.82
  5. Step 5: Solve for x
    x = 3,309,459.82/1,915.92
  6. Step 6: Final answer
    x = 1,727.35

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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.