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Finding the Fourth Proportional to 6,715.46, 10,079.46 and 3,430.91

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Solution

The fourth proportional to 6,715.46, 10,079.46 and 3,430.91 is: 5,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.46 : 10,079.46 = 3,430.91 : x
  2. Step 2: Convert to fraction form
    6,715.46/10,079.46 = 3,430.91/x
  3. Step 3: Cross multiply
    6,715.46x = 10,079.46 × 3,430.91
  4. Step 4: Simplify right side
    6,715.46x = 34,581,720.11
  5. Step 5: Solve for x
    x = 34,581,720.11/6,715.46
  6. Step 6: Final answer
    x = 5,149.57

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1.5x scale

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.