Home / 1,520.22-2,275.11-964.62

Finding the Fourth Proportional to 1,520.22, 2,275.11 and 964.62

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Solution

The fourth proportional to 1,520.22, 2,275.11 and 964.62 is: 1,443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.22 : 2,275.11 = 964.62 : x
  2. Step 2: Convert to fraction form
    1,520.22/2,275.11 = 964.62/x
  3. Step 3: Cross multiply
    1,520.22x = 2,275.11 × 964.62
  4. Step 4: Simplify right side
    1,520.22x = 2,194,616.61
  5. Step 5: Solve for x
    x = 2,194,616.61/1,520.22
  6. Step 6: Final answer
    x = 1,443.62

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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.