Home / 2,589.47-3,882.53-1,109.66

Finding the Fourth Proportional to 2,589.47, 3,882.53 and 1,109.66

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Solution

The fourth proportional to 2,589.47, 3,882.53 and 1,109.66 is: 1,663.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,589.47 : 3,882.53 = 1,109.66 : x
  2. Step 2: Convert to fraction form
    2,589.47/3,882.53 = 1,109.66/x
  3. Step 3: Cross multiply
    2,589.47x = 3,882.53 × 1,109.66
  4. Step 4: Simplify right side
    2,589.47x = 4,308,288.24
  5. Step 5: Solve for x
    x = 4,308,288.24/2,589.47
  6. Step 6: Final answer
    x = 1,663.77

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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.