Home / 3,889.32-5,365.80-2,492.88

Finding the Fourth Proportional to 3,889.32, 5,365.80 and 2,492.88

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Solution

The fourth proportional to 3,889.32, 5,365.80 and 2,492.88 is: 3,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.32 : 5,365.80 = 2,492.88 : x
  2. Step 2: Convert to fraction form
    3,889.32/5,365.80 = 2,492.88/x
  3. Step 3: Cross multiply
    3,889.32x = 5,365.80 × 2,492.88
  4. Step 4: Simplify right side
    3,889.32x = 13,376,295.50
  5. Step 5: Solve for x
    x = 13,376,295.50/3,889.32
  6. Step 6: Final answer
    x = 3,439.24

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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.