Home / 5,283.80-7,925.82-1,388.60

Finding the Fourth Proportional to 5,283.80, 7,925.82 and 1,388.60

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Solution

The fourth proportional to 5,283.80, 7,925.82 and 1,388.60 is: 2,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.80 : 7,925.82 = 1,388.60 : x
  2. Step 2: Convert to fraction form
    5,283.80/7,925.82 = 1,388.60/x
  3. Step 3: Cross multiply
    5,283.80x = 7,925.82 × 1,388.60
  4. Step 4: Simplify right side
    5,283.80x = 11,005,793.65
  5. Step 5: Solve for x
    x = 11,005,793.65/5,283.80
  6. Step 6: Final answer
    x = 2,082.93

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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.