Home / 5,531.36-7,633.12-3,171.84

Finding the Fourth Proportional to 5,531.36, 7,633.12 and 3,171.84

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Solution

The fourth proportional to 5,531.36, 7,633.12 and 3,171.84 is: 4,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.36 : 7,633.12 = 3,171.84 : x
  2. Step 2: Convert to fraction form
    5,531.36/7,633.12 = 3,171.84/x
  3. Step 3: Cross multiply
    5,531.36x = 7,633.12 × 3,171.84
  4. Step 4: Simplify right side
    5,531.36x = 24,211,035.34
  5. Step 5: Solve for x
    x = 24,211,035.34/5,531.36
  6. Step 6: Final answer
    x = 4,377.05

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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.