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Finding the Fourth Proportional to 7,069.77, 9,755.10 and 3,925.89

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Solution

The fourth proportional to 7,069.77, 9,755.10 and 3,925.89 is: 5,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.77 : 9,755.10 = 3,925.89 : x
  2. Step 2: Convert to fraction form
    7,069.77/9,755.10 = 3,925.89/x
  3. Step 3: Cross multiply
    7,069.77x = 9,755.10 × 3,925.89
  4. Step 4: Simplify right side
    7,069.77x = 38,297,449.54
  5. Step 5: Solve for x
    x = 38,297,449.54/7,069.77
  6. Step 6: Final answer
    x = 5,417.07

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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.