Home / 3,154.90-4,349.17-2,207.81

Finding the Fourth Proportional to 3,154.90, 4,349.17 and 2,207.81

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Solution

The fourth proportional to 3,154.90, 4,349.17 and 2,207.81 is: 3,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.90 : 4,349.17 = 2,207.81 : x
  2. Step 2: Convert to fraction form
    3,154.90/4,349.17 = 2,207.81/x
  3. Step 3: Cross multiply
    3,154.90x = 4,349.17 × 2,207.81
  4. Step 4: Simplify right side
    3,154.90x = 9,602,123.98
  5. Step 5: Solve for x
    x = 9,602,123.98/3,154.90
  6. Step 6: Final answer
    x = 3,043.56

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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.