Home / 2,387.04-3,294.52-1,392.43

Finding the Fourth Proportional to 2,387.04, 3,294.52 and 1,392.43

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Solution

The fourth proportional to 2,387.04, 3,294.52 and 1,392.43 is: 1,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.04 : 3,294.52 = 1,392.43 : x
  2. Step 2: Convert to fraction form
    2,387.04/3,294.52 = 1,392.43/x
  3. Step 3: Cross multiply
    2,387.04x = 3,294.52 × 1,392.43
  4. Step 4: Simplify right side
    2,387.04x = 4,587,376.77
  5. Step 5: Solve for x
    x = 4,587,376.77/2,387.04
  6. Step 6: Final answer
    x = 1,921.78

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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.