Home / 3,387.40-4,678.27-2,327.96

Finding the Fourth Proportional to 3,387.40, 4,678.27 and 2,327.96

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Solution

The fourth proportional to 3,387.40, 4,678.27 and 2,327.96 is: 3,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.40 : 4,678.27 = 2,327.96 : x
  2. Step 2: Convert to fraction form
    3,387.40/4,678.27 = 2,327.96/x
  3. Step 3: Cross multiply
    3,387.40x = 4,678.27 × 2,327.96
  4. Step 4: Simplify right side
    3,387.40x = 10,890,831.30
  5. Step 5: Solve for x
    x = 10,890,831.30/3,387.40
  6. Step 6: Final answer
    x = 3,215.10

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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.