Home / 3,895.32-5,376.66-2,479.05

Finding the Fourth Proportional to 3,895.32, 5,376.66 and 2,479.05

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Solution

The fourth proportional to 3,895.32, 5,376.66 and 2,479.05 is: 3,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.32 : 5,376.66 = 2,479.05 : x
  2. Step 2: Convert to fraction form
    3,895.32/5,376.66 = 2,479.05/x
  3. Step 3: Cross multiply
    3,895.32x = 5,376.66 × 2,479.05
  4. Step 4: Simplify right side
    3,895.32x = 13,329,008.97
  5. Step 5: Solve for x
    x = 13,329,008.97/3,895.32
  6. Step 6: Final answer
    x = 3,421.80

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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.