Home / 1,521.72-2,280.96-1,000.08

Finding the Fourth Proportional to 1,521.72, 2,280.96 and 1,000.08

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Solution

The fourth proportional to 1,521.72, 2,280.96 and 1,000.08 is: 1,499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.72 : 2,280.96 = 1,000.08 : x
  2. Step 2: Convert to fraction form
    1,521.72/2,280.96 = 1,000.08/x
  3. Step 3: Cross multiply
    1,521.72x = 2,280.96 × 1,000.08
  4. Step 4: Simplify right side
    1,521.72x = 2,281,142.48
  5. Step 5: Solve for x
    x = 2,281,142.48/1,521.72
  6. Step 6: Final answer
    x = 1,499.06

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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.