Home / 2,376.90-3,281.04-2,127.78

Finding the Fourth Proportional to 2,376.90, 3,281.04 and 2,127.78

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Solution

The fourth proportional to 2,376.90, 3,281.04 and 2,127.78 is: 2,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.90 : 3,281.04 = 2,127.78 : x
  2. Step 2: Convert to fraction form
    2,376.90/3,281.04 = 2,127.78/x
  3. Step 3: Cross multiply
    2,376.90x = 3,281.04 × 2,127.78
  4. Step 4: Simplify right side
    2,376.90x = 6,981,331.29
  5. Step 5: Solve for x
    x = 6,981,331.29/2,376.90
  6. Step 6: Final answer
    x = 2,937.16

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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.