Home / 5,306.72-7,960.20-1,411.52

Finding the Fourth Proportional to 5,306.72, 7,960.20 and 1,411.52

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Solution

The fourth proportional to 5,306.72, 7,960.20 and 1,411.52 is: 2,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.72 : 7,960.20 = 1,411.52 : x
  2. Step 2: Convert to fraction form
    5,306.72/7,960.20 = 1,411.52/x
  3. Step 3: Cross multiply
    5,306.72x = 7,960.20 × 1,411.52
  4. Step 4: Simplify right side
    5,306.72x = 11,235,981.50
  5. Step 5: Solve for x
    x = 11,235,981.50/5,306.72
  6. Step 6: Final answer
    x = 2,117.31

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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.