Home / 7,118.13-10,679.97-2,957.10

Finding the Fourth Proportional to 7,118.13, 10,679.97 and 2,957.10

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Solution

The fourth proportional to 7,118.13, 10,679.97 and 2,957.10 is: 4,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.13 : 10,679.97 = 2,957.10 : x
  2. Step 2: Convert to fraction form
    7,118.13/10,679.97 = 2,957.10/x
  3. Step 3: Cross multiply
    7,118.13x = 10,679.97 × 2,957.10
  4. Step 4: Simplify right side
    7,118.13x = 31,581,739.29
  5. Step 5: Solve for x
    x = 31,581,739.29/7,118.13
  6. Step 6: Final answer
    x = 4,436.80

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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.