Home / 3,839.32-5,298.28-2,160.75

Finding the Fourth Proportional to 3,839.32, 5,298.28 and 2,160.75

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Solution

The fourth proportional to 3,839.32, 5,298.28 and 2,160.75 is: 2,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.32 : 5,298.28 = 2,160.75 : x
  2. Step 2: Convert to fraction form
    3,839.32/5,298.28 = 2,160.75/x
  3. Step 3: Cross multiply
    3,839.32x = 5,298.28 × 2,160.75
  4. Step 4: Simplify right side
    3,839.32x = 11,448,247.71
  5. Step 5: Solve for x
    x = 11,448,247.71/3,839.32
  6. Step 6: Final answer
    x = 2,981.85

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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.