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Finding the Fourth Proportional to 5,437.88, 7,493.15 and 5,143.80

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Solution

The fourth proportional to 5,437.88, 7,493.15 and 5,143.80 is: 7,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,437.88 : 7,493.15 = 5,143.80 : x
  2. Step 2: Convert to fraction form
    5,437.88/7,493.15 = 5,143.80/x
  3. Step 3: Cross multiply
    5,437.88x = 7,493.15 × 5,143.80
  4. Step 4: Simplify right side
    5,437.88x = 38,543,277.83
  5. Step 5: Solve for x
    x = 38,543,277.83/5,437.88
  6. Step 6: Final answer
    x = 7,087.93

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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.