Home / 3,115.73-4,675.34-1,654.85

Finding the Fourth Proportional to 3,115.73, 4,675.34 and 1,654.85

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Solution

The fourth proportional to 3,115.73, 4,675.34 and 1,654.85 is: 2,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.73 : 4,675.34 = 1,654.85 : x
  2. Step 2: Convert to fraction form
    3,115.73/4,675.34 = 1,654.85/x
  3. Step 3: Cross multiply
    3,115.73x = 4,675.34 × 1,654.85
  4. Step 4: Simplify right side
    3,115.73x = 7,736,967.16
  5. Step 5: Solve for x
    x = 7,736,967.16/3,115.73
  6. Step 6: Final answer
    x = 2,483.20

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1.5x scale

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.