Home / 1,254.28-1,726.58-1,086.16

Finding the Fourth Proportional to 1,254.28, 1,726.58 and 1,086.16

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Solution

The fourth proportional to 1,254.28, 1,726.58 and 1,086.16 is: 1,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.28 : 1,726.58 = 1,086.16 : x
  2. Step 2: Convert to fraction form
    1,254.28/1,726.58 = 1,086.16/x
  3. Step 3: Cross multiply
    1,254.28x = 1,726.58 × 1,086.16
  4. Step 4: Simplify right side
    1,254.28x = 1,875,342.13
  5. Step 5: Solve for x
    x = 1,875,342.13/1,254.28
  6. Step 6: Final answer
    x = 1,495.15

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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.