Home / 1,520.30-2,281.49-1,000.55

Finding the Fourth Proportional to 1,520.30, 2,281.49 and 1,000.55

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Solution

The fourth proportional to 1,520.30, 2,281.49 and 1,000.55 is: 1,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.30 : 2,281.49 = 1,000.55 : x
  2. Step 2: Convert to fraction form
    1,520.30/2,281.49 = 1,000.55/x
  3. Step 3: Cross multiply
    1,520.30x = 2,281.49 × 1,000.55
  4. Step 4: Simplify right side
    1,520.30x = 2,282,728.41
  5. Step 5: Solve for x
    x = 2,282,728.41/1,520.30
  6. Step 6: Final answer
    x = 1,501.50

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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.