Home / 5,225.32-7,832.13-3,988.63

Finding the Fourth Proportional to 5,225.32, 7,832.13 and 3,988.63

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Solution

The fourth proportional to 5,225.32, 7,832.13 and 3,988.63 is: 5,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.32 : 7,832.13 = 3,988.63 : x
  2. Step 2: Convert to fraction form
    5,225.32/7,832.13 = 3,988.63/x
  3. Step 3: Cross multiply
    5,225.32x = 7,832.13 × 3,988.63
  4. Step 4: Simplify right side
    5,225.32x = 31,239,468.68
  5. Step 5: Solve for x
    x = 31,239,468.68/5,225.32
  6. Step 6: Final answer
    x = 5,978.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.