Home / 2,876.04-3,972.92-2,221.16

Finding the Fourth Proportional to 2,876.04, 3,972.92 and 2,221.16

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Solution

The fourth proportional to 2,876.04, 3,972.92 and 2,221.16 is: 3,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.04 : 3,972.92 = 2,221.16 : x
  2. Step 2: Convert to fraction form
    2,876.04/3,972.92 = 2,221.16/x
  3. Step 3: Cross multiply
    2,876.04x = 3,972.92 × 2,221.16
  4. Step 4: Simplify right side
    2,876.04x = 8,824,460.02
  5. Step 5: Solve for x
    x = 8,824,460.02/2,876.04
  6. Step 6: Final answer
    x = 3,068.27

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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.