Home / 5,387.61-7,433.79-3,149.05

Finding the Fourth Proportional to 5,387.61, 7,433.79 and 3,149.05

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Solution

The fourth proportional to 5,387.61, 7,433.79 and 3,149.05 is: 4,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.61 : 7,433.79 = 3,149.05 : x
  2. Step 2: Convert to fraction form
    5,387.61/7,433.79 = 3,149.05/x
  3. Step 3: Cross multiply
    5,387.61x = 7,433.79 × 3,149.05
  4. Step 4: Simplify right side
    5,387.61x = 23,409,377.66
  5. Step 5: Solve for x
    x = 23,409,377.66/5,387.61
  6. Step 6: Final answer
    x = 4,345.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.