Home / 1,512.32-2,269.24-690.52

Finding the Fourth Proportional to 1,512.32, 2,269.24 and 690.52

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Solution

The fourth proportional to 1,512.32, 2,269.24 and 690.52 is: 1,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.32 : 2,269.24 = 690.52 : x
  2. Step 2: Convert to fraction form
    1,512.32/2,269.24 = 690.52/x
  3. Step 3: Cross multiply
    1,512.32x = 2,269.24 × 690.52
  4. Step 4: Simplify right side
    1,512.32x = 1,566,955.60
  5. Step 5: Solve for x
    x = 1,566,955.60/1,512.32
  6. Step 6: Final answer
    x = 1,036.13

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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.