Home / 3,158.86-4,358.10-1,831.84

Finding the Fourth Proportional to 3,158.86, 4,358.10 and 1,831.84

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Solution

The fourth proportional to 3,158.86, 4,358.10 and 1,831.84 is: 2,527.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.86 : 4,358.10 = 1,831.84 : x
  2. Step 2: Convert to fraction form
    3,158.86/4,358.10 = 1,831.84/x
  3. Step 3: Cross multiply
    3,158.86x = 4,358.10 × 1,831.84
  4. Step 4: Simplify right side
    3,158.86x = 7,983,341.90
  5. Step 5: Solve for x
    x = 7,983,341.90/3,158.86
  6. Step 6: Final answer
    x = 2,527.29

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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.