Home / 3,154.28-4,727.70-1,489.32

Finding the Fourth Proportional to 3,154.28, 4,727.70 and 1,489.32

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Solution

The fourth proportional to 3,154.28, 4,727.70 and 1,489.32 is: 2,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.28 : 4,727.70 = 1,489.32 : x
  2. Step 2: Convert to fraction form
    3,154.28/4,727.70 = 1,489.32/x
  3. Step 3: Cross multiply
    3,154.28x = 4,727.70 × 1,489.32
  4. Step 4: Simplify right side
    3,154.28x = 7,041,058.16
  5. Step 5: Solve for x
    x = 7,041,058.16/3,154.28
  6. Step 6: Final answer
    x = 2,232.23

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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.