Home / 4,758.31-7,132.56-1,986.60

Finding the Fourth Proportional to 4,758.31, 7,132.56 and 1,986.60

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Solution

The fourth proportional to 4,758.31, 7,132.56 and 1,986.60 is: 2,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.31 : 7,132.56 = 1,986.60 : x
  2. Step 2: Convert to fraction form
    4,758.31/7,132.56 = 1,986.60/x
  3. Step 3: Cross multiply
    4,758.31x = 7,132.56 × 1,986.60
  4. Step 4: Simplify right side
    4,758.31x = 14,169,543.70
  5. Step 5: Solve for x
    x = 14,169,543.70/4,758.31
  6. Step 6: Final answer
    x = 2,977.85

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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.