Home / 3,867.75-5,332.51-3,158.84

Finding the Fourth Proportional to 3,867.75, 5,332.51 and 3,158.84

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Solution

The fourth proportional to 3,867.75, 5,332.51 and 3,158.84 is: 4,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.75 : 5,332.51 = 3,158.84 : x
  2. Step 2: Convert to fraction form
    3,867.75/5,332.51 = 3,158.84/x
  3. Step 3: Cross multiply
    3,867.75x = 5,332.51 × 3,158.84
  4. Step 4: Simplify right side
    3,867.75x = 16,844,563.17
  5. Step 5: Solve for x
    x = 16,844,563.17/3,867.75
  6. Step 6: Final answer
    x = 4,355.13

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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.