Home / 1,520.08-2,096.50-1,147.12

Finding the Fourth Proportional to 1,520.08, 2,096.50 and 1,147.12

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Solution

The fourth proportional to 1,520.08, 2,096.50 and 1,147.12 is: 1,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.08 : 2,096.50 = 1,147.12 : x
  2. Step 2: Convert to fraction form
    1,520.08/2,096.50 = 1,147.12/x
  3. Step 3: Cross multiply
    1,520.08x = 2,096.50 × 1,147.12
  4. Step 4: Simplify right side
    1,520.08x = 2,404,937.08
  5. Step 5: Solve for x
    x = 2,404,937.08/1,520.08
  6. Step 6: Final answer
    x = 1,582.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.