Home / 1,915.96-2,643.44-1,169.92

Finding the Fourth Proportional to 1,915.96, 2,643.44 and 1,169.92

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Solution

The fourth proportional to 1,915.96, 2,643.44 and 1,169.92 is: 1,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.96 : 2,643.44 = 1,169.92 : x
  2. Step 2: Convert to fraction form
    1,915.96/2,643.44 = 1,169.92/x
  3. Step 3: Cross multiply
    1,915.96x = 2,643.44 × 1,169.92
  4. Step 4: Simplify right side
    1,915.96x = 3,092,613.32
  5. Step 5: Solve for x
    x = 3,092,613.32/1,915.96
  6. Step 6: Final answer
    x = 1,614.13

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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.