Home / 1,520.64-2,285.28-1,481.76

Finding the Fourth Proportional to 1,520.64, 2,285.28 and 1,481.76

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Solution

The fourth proportional to 1,520.64, 2,285.28 and 1,481.76 is: 2,226.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.64 : 2,285.28 = 1,481.76 : x
  2. Step 2: Convert to fraction form
    1,520.64/2,285.28 = 1,481.76/x
  3. Step 3: Cross multiply
    1,520.64x = 2,285.28 × 1,481.76
  4. Step 4: Simplify right side
    1,520.64x = 3,386,236.49
  5. Step 5: Solve for x
    x = 3,386,236.49/1,520.64
  6. Step 6: Final answer
    x = 2,226.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.