Home / 2,921.30-4,400.12-2,663.18

Finding the Fourth Proportional to 2,921.30, 4,400.12 and 2,663.18

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Solution

The fourth proportional to 2,921.30, 4,400.12 and 2,663.18 is: 4,011.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.30 : 4,400.12 = 2,663.18 : x
  2. Step 2: Convert to fraction form
    2,921.30/4,400.12 = 2,663.18/x
  3. Step 3: Cross multiply
    2,921.30x = 4,400.12 × 2,663.18
  4. Step 4: Simplify right side
    2,921.30x = 11,718,311.58
  5. Step 5: Solve for x
    x = 11,718,311.58/2,921.30
  6. Step 6: Final answer
    x = 4,011.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.