Home / 2,264.20-3,124.64-1,320.20

Finding the Fourth Proportional to 2,264.20, 3,124.64 and 1,320.20

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Solution

The fourth proportional to 2,264.20, 3,124.64 and 1,320.20 is: 1,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.20 : 3,124.64 = 1,320.20 : x
  2. Step 2: Convert to fraction form
    2,264.20/3,124.64 = 1,320.20/x
  3. Step 3: Cross multiply
    2,264.20x = 3,124.64 × 1,320.20
  4. Step 4: Simplify right side
    2,264.20x = 4,125,149.73
  5. Step 5: Solve for x
    x = 4,125,149.73/2,264.20
  6. Step 6: Final answer
    x = 1,821.90

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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.