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Finding the Fourth Proportional to 7,068.30, 9,754.30 and 3,881.90

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Solution

The fourth proportional to 7,068.30, 9,754.30 and 3,881.90 is: 5,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.30 : 9,754.30 = 3,881.90 : x
  2. Step 2: Convert to fraction form
    7,068.30/9,754.30 = 3,881.90/x
  3. Step 3: Cross multiply
    7,068.30x = 9,754.30 × 3,881.90
  4. Step 4: Simplify right side
    7,068.30x = 37,865,217.17
  5. Step 5: Solve for x
    x = 37,865,217.17/7,068.30
  6. Step 6: Final answer
    x = 5,357.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.