Home / 1,504.32-2,255.28-723.92

Finding the Fourth Proportional to 1,504.32, 2,255.28 and 723.92

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Solution

The fourth proportional to 1,504.32, 2,255.28 and 723.92 is: 1,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.32 : 2,255.28 = 723.92 : x
  2. Step 2: Convert to fraction form
    1,504.32/2,255.28 = 723.92/x
  3. Step 3: Cross multiply
    1,504.32x = 2,255.28 × 723.92
  4. Step 4: Simplify right side
    1,504.32x = 1,632,642.30
  5. Step 5: Solve for x
    x = 1,632,642.30/1,504.32
  6. Step 6: Final answer
    x = 1,085.30

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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.