Home / 5,237.52-7,854.30-2,638.68

Finding the Fourth Proportional to 5,237.52, 7,854.30 and 2,638.68

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Solution

The fourth proportional to 5,237.52, 7,854.30 and 2,638.68 is: 3,957.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.52 : 7,854.30 = 2,638.68 : x
  2. Step 2: Convert to fraction form
    5,237.52/7,854.30 = 2,638.68/x
  3. Step 3: Cross multiply
    5,237.52x = 7,854.30 × 2,638.68
  4. Step 4: Simplify right side
    5,237.52x = 20,724,984.32
  5. Step 5: Solve for x
    x = 20,724,984.32/5,237.52
  6. Step 6: Final answer
    x = 3,957.02

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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.