Home / 2,711.13-4,066.69-659.13

Finding the Fourth Proportional to 2,711.13, 4,066.69 and 659.13

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Solution

The fourth proportional to 2,711.13, 4,066.69 and 659.13 is: 988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.13 : 4,066.69 = 659.13 : x
  2. Step 2: Convert to fraction form
    2,711.13/4,066.69 = 659.13/x
  3. Step 3: Cross multiply
    2,711.13x = 4,066.69 × 659.13
  4. Step 4: Simplify right side
    2,711.13x = 2,680,477.38
  5. Step 5: Solve for x
    x = 2,680,477.38/2,711.13
  6. Step 6: Final answer
    x = 988.69

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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.