Home / 5,831.39-8,047.49-3,178.85

Finding the Fourth Proportional to 5,831.39, 8,047.49 and 3,178.85

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Solution

The fourth proportional to 5,831.39, 8,047.49 and 3,178.85 is: 4,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.39 : 8,047.49 = 3,178.85 : x
  2. Step 2: Convert to fraction form
    5,831.39/8,047.49 = 3,178.85/x
  3. Step 3: Cross multiply
    5,831.39x = 8,047.49 × 3,178.85
  4. Step 4: Simplify right side
    5,831.39x = 25,581,707.45
  5. Step 5: Solve for x
    x = 25,581,707.45/5,831.39
  6. Step 6: Final answer
    x = 4,386.90

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1.5x scale

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.