Home / 5,319.59-7,981.11-1,622.52

Finding the Fourth Proportional to 5,319.59, 7,981.11 and 1,622.52

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Solution

The fourth proportional to 5,319.59, 7,981.11 and 1,622.52 is: 2,434.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.59 : 7,981.11 = 1,622.52 : x
  2. Step 2: Convert to fraction form
    5,319.59/7,981.11 = 1,622.52/x
  3. Step 3: Cross multiply
    5,319.59x = 7,981.11 × 1,622.52
  4. Step 4: Simplify right side
    5,319.59x = 12,949,510.60
  5. Step 5: Solve for x
    x = 12,949,510.60/5,319.59
  6. Step 6: Final answer
    x = 2,434.31

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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.