Home / 5,726.56-8,589.68-1,831.20

Finding the Fourth Proportional to 5,726.56, 8,589.68 and 1,831.20

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Solution

The fourth proportional to 5,726.56, 8,589.68 and 1,831.20 is: 2,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.56 : 8,589.68 = 1,831.20 : x
  2. Step 2: Convert to fraction form
    5,726.56/8,589.68 = 1,831.20/x
  3. Step 3: Cross multiply
    5,726.56x = 8,589.68 × 1,831.20
  4. Step 4: Simplify right side
    5,726.56x = 15,729,422.02
  5. Step 5: Solve for x
    x = 15,729,422.02/5,726.56
  6. Step 6: Final answer
    x = 2,746.75

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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.