Home / 3,929.32-5,422.98-2,536.12

Finding the Fourth Proportional to 3,929.32, 5,422.98 and 2,536.12

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Solution

The fourth proportional to 3,929.32, 5,422.98 and 2,536.12 is: 3,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.32 : 5,422.98 = 2,536.12 : x
  2. Step 2: Convert to fraction form
    3,929.32/5,422.98 = 2,536.12/x
  3. Step 3: Cross multiply
    3,929.32x = 5,422.98 × 2,536.12
  4. Step 4: Simplify right side
    3,929.32x = 13,753,328.04
  5. Step 5: Solve for x
    x = 13,753,328.04/3,929.32
  6. Step 6: Final answer
    x = 3,500.18

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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.