Home / 5,391.48-7,437.79-3,897.03

Finding the Fourth Proportional to 5,391.48, 7,437.79 and 3,897.03

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Solution

The fourth proportional to 5,391.48, 7,437.79 and 3,897.03 is: 5,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.48 : 7,437.79 = 3,897.03 : x
  2. Step 2: Convert to fraction form
    5,391.48/7,437.79 = 3,897.03/x
  3. Step 3: Cross multiply
    5,391.48x = 7,437.79 × 3,897.03
  4. Step 4: Simplify right side
    5,391.48x = 28,985,290.76
  5. Step 5: Solve for x
    x = 28,985,290.76/5,391.48
  6. Step 6: Final answer
    x = 5,376.13

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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.