Home / 1,455.29-2,181.99-1,060.11

Finding the Fourth Proportional to 1,455.29, 2,181.99 and 1,060.11

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Solution

The fourth proportional to 1,455.29, 2,181.99 and 1,060.11 is: 1,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.29 : 2,181.99 = 1,060.11 : x
  2. Step 2: Convert to fraction form
    1,455.29/2,181.99 = 1,060.11/x
  3. Step 3: Cross multiply
    1,455.29x = 2,181.99 × 1,060.11
  4. Step 4: Simplify right side
    1,455.29x = 2,313,149.42
  5. Step 5: Solve for x
    x = 2,313,149.42/1,455.29
  6. Step 6: Final answer
    x = 1,589.48

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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.