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Finding the Fourth Proportional to 5,891.40, 8,869.23 and 5,087.88

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Solution

The fourth proportional to 5,891.40, 8,869.23 and 5,087.88 is: 7,659.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.40 : 8,869.23 = 5,087.88 : x
  2. Step 2: Convert to fraction form
    5,891.40/8,869.23 = 5,087.88/x
  3. Step 3: Cross multiply
    5,891.40x = 8,869.23 × 5,087.88
  4. Step 4: Simplify right side
    5,891.40x = 45,125,577.93
  5. Step 5: Solve for x
    x = 45,125,577.93/5,891.40
  6. Step 6: Final answer
    x = 7,659.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.