Home / 1,528.20-2,293.11-706.86

Finding the Fourth Proportional to 1,528.20, 2,293.11 and 706.86

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Solution

The fourth proportional to 1,528.20, 2,293.11 and 706.86 is: 1,060.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.20 : 2,293.11 = 706.86 : x
  2. Step 2: Convert to fraction form
    1,528.20/2,293.11 = 706.86/x
  3. Step 3: Cross multiply
    1,528.20x = 2,293.11 × 706.86
  4. Step 4: Simplify right side
    1,528.20x = 1,620,907.73
  5. Step 5: Solve for x
    x = 1,620,907.73/1,528.20
  6. Step 6: Final answer
    x = 1,060.66

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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.