Home / 1,528.14-2,292.45-748.18

Finding the Fourth Proportional to 1,528.14, 2,292.45 and 748.18

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Solution

The fourth proportional to 1,528.14, 2,292.45 and 748.18 is: 1,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.14 : 2,292.45 = 748.18 : x
  2. Step 2: Convert to fraction form
    1,528.14/2,292.45 = 748.18/x
  3. Step 3: Cross multiply
    1,528.14x = 2,292.45 × 748.18
  4. Step 4: Simplify right side
    1,528.14x = 1,715,165.24
  5. Step 5: Solve for x
    x = 1,715,165.24/1,528.14
  6. Step 6: Final answer
    x = 1,122.39

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1.5x scale

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.