Home / 6,451.80-9,670.14-2,981.76

Finding the Fourth Proportional to 6,451.80, 9,670.14 and 2,981.76

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Solution

The fourth proportional to 6,451.80, 9,670.14 and 2,981.76 is: 4,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.80 : 9,670.14 = 2,981.76 : x
  2. Step 2: Convert to fraction form
    6,451.80/9,670.14 = 2,981.76/x
  3. Step 3: Cross multiply
    6,451.80x = 9,670.14 × 2,981.76
  4. Step 4: Simplify right side
    6,451.80x = 28,834,036.65
  5. Step 5: Solve for x
    x = 28,834,036.65/6,451.80
  6. Step 6: Final answer
    x = 4,469.15

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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.