Home / 5,649.32-8,480.28-3,312.08

Finding the Fourth Proportional to 5,649.32, 8,480.28 and 3,312.08

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Solution

The fourth proportional to 5,649.32, 8,480.28 and 3,312.08 is: 4,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.32 : 8,480.28 = 3,312.08 : x
  2. Step 2: Convert to fraction form
    5,649.32/8,480.28 = 3,312.08/x
  3. Step 3: Cross multiply
    5,649.32x = 8,480.28 × 3,312.08
  4. Step 4: Simplify right side
    5,649.32x = 28,087,365.78
  5. Step 5: Solve for x
    x = 28,087,365.78/5,649.32
  6. Step 6: Final answer
    x = 4,971.81

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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.