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Finding the Fourth Proportional to 7,070.59, 10,605.93 and 2,689.30

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Solution

The fourth proportional to 7,070.59, 10,605.93 and 2,689.30 is: 4,033.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.59 : 10,605.93 = 2,689.30 : x
  2. Step 2: Convert to fraction form
    7,070.59/10,605.93 = 2,689.30/x
  3. Step 3: Cross multiply
    7,070.59x = 10,605.93 × 2,689.30
  4. Step 4: Simplify right side
    7,070.59x = 28,522,527.55
  5. Step 5: Solve for x
    x = 28,522,527.55/7,070.59
  6. Step 6: Final answer
    x = 4,033.97

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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.