Home / 3,387.42-4,669.47-2,442.78

Finding the Fourth Proportional to 3,387.42, 4,669.47 and 2,442.78

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Solution

The fourth proportional to 3,387.42, 4,669.47 and 2,442.78 is: 3,367.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.42 : 4,669.47 = 2,442.78 : x
  2. Step 2: Convert to fraction form
    3,387.42/4,669.47 = 2,442.78/x
  3. Step 3: Cross multiply
    3,387.42x = 4,669.47 × 2,442.78
  4. Step 4: Simplify right side
    3,387.42x = 11,406,487.93
  5. Step 5: Solve for x
    x = 11,406,487.93/3,387.42
  6. Step 6: Final answer
    x = 3,367.31

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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.