Home / 1,595.20-2,391.56-729.28

Finding the Fourth Proportional to 1,595.20, 2,391.56 and 729.28

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Solution

The fourth proportional to 1,595.20, 2,391.56 and 729.28 is: 1,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.20 : 2,391.56 = 729.28 : x
  2. Step 2: Convert to fraction form
    1,595.20/2,391.56 = 729.28/x
  3. Step 3: Cross multiply
    1,595.20x = 2,391.56 × 729.28
  4. Step 4: Simplify right side
    1,595.20x = 1,744,116.88
  5. Step 5: Solve for x
    x = 1,744,116.88/1,595.20
  6. Step 6: Final answer
    x = 1,093.35

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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.