Home / 5,531.30-7,629.71-3,291.50

Finding the Fourth Proportional to 5,531.30, 7,629.71 and 3,291.50

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Solution

The fourth proportional to 5,531.30, 7,629.71 and 3,291.50 is: 4,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.30 : 7,629.71 = 3,291.50 : x
  2. Step 2: Convert to fraction form
    5,531.30/7,629.71 = 3,291.50/x
  3. Step 3: Cross multiply
    5,531.30x = 7,629.71 × 3,291.50
  4. Step 4: Simplify right side
    5,531.30x = 25,113,193.08
  5. Step 5: Solve for x
    x = 25,113,193.08/5,531.30
  6. Step 6: Final answer
    x = 4,540.20

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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.