Home / 4,881.60-7,300.80-3,715.20

Finding the Fourth Proportional to 4,881.60, 7,300.80 and 3,715.20

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Solution

The fourth proportional to 4,881.60, 7,300.80 and 3,715.20 is: 5,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.60 : 7,300.80 = 3,715.20 : x
  2. Step 2: Convert to fraction form
    4,881.60/7,300.80 = 3,715.20/x
  3. Step 3: Cross multiply
    4,881.60x = 7,300.80 × 3,715.20
  4. Step 4: Simplify right side
    4,881.60x = 27,123,932.16
  5. Step 5: Solve for x
    x = 27,123,932.16/4,881.60
  6. Step 6: Final answer
    x = 5,556.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.