Home / 3,158.52-4,358.79-1,831.74

Finding the Fourth Proportional to 3,158.52, 4,358.79 and 1,831.74

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Solution

The fourth proportional to 3,158.52, 4,358.79 and 1,831.74 is: 2,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.52 : 4,358.79 = 1,831.74 : x
  2. Step 2: Convert to fraction form
    3,158.52/4,358.79 = 1,831.74/x
  3. Step 3: Cross multiply
    3,158.52x = 4,358.79 × 1,831.74
  4. Step 4: Simplify right side
    3,158.52x = 7,984,169.99
  5. Step 5: Solve for x
    x = 7,984,169.99/3,158.52
  6. Step 6: Final answer
    x = 2,527.82

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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.