Home / 1,520.05-2,281.11-1,000.30

Finding the Fourth Proportional to 1,520.05, 2,281.11 and 1,000.30

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Solution

The fourth proportional to 1,520.05, 2,281.11 and 1,000.30 is: 1,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.05 : 2,281.11 = 1,000.30 : x
  2. Step 2: Convert to fraction form
    1,520.05/2,281.11 = 1,000.30/x
  3. Step 3: Cross multiply
    1,520.05x = 2,281.11 × 1,000.30
  4. Step 4: Simplify right side
    1,520.05x = 2,281,794.33
  5. Step 5: Solve for x
    x = 2,281,794.33/1,520.05
  6. Step 6: Final answer
    x = 1,501.13

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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.