Home / 5,728.92-8,589.18-1,831.08

Finding the Fourth Proportional to 5,728.92, 8,589.18 and 1,831.08

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Solution

The fourth proportional to 5,728.92, 8,589.18 and 1,831.08 is: 2,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.92 : 8,589.18 = 1,831.08 : x
  2. Step 2: Convert to fraction form
    5,728.92/8,589.18 = 1,831.08/x
  3. Step 3: Cross multiply
    5,728.92x = 8,589.18 × 1,831.08
  4. Step 4: Simplify right side
    5,728.92x = 15,727,475.71
  5. Step 5: Solve for x
    x = 15,727,475.71/5,728.92
  6. Step 6: Final answer
    x = 2,745.28

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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.