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Finding the Fourth Proportional to 7,068.09, 9,754.20 and 3,881.70

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Solution

The fourth proportional to 7,068.09, 9,754.20 and 3,881.70 is: 5,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.09 : 9,754.20 = 3,881.70 : x
  2. Step 2: Convert to fraction form
    7,068.09/9,754.20 = 3,881.70/x
  3. Step 3: Cross multiply
    7,068.09x = 9,754.20 × 3,881.70
  4. Step 4: Simplify right side
    7,068.09x = 37,862,878.14
  5. Step 5: Solve for x
    x = 37,862,878.14/7,068.09
  6. Step 6: Final answer
    x = 5,356.88

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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.