Home / 5,531.40-7,630.56-3,291.60

Finding the Fourth Proportional to 5,531.40, 7,630.56 and 3,291.60

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Solution

The fourth proportional to 5,531.40, 7,630.56 and 3,291.60 is: 4,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.40 : 7,630.56 = 3,291.60 : x
  2. Step 2: Convert to fraction form
    5,531.40/7,630.56 = 3,291.60/x
  3. Step 3: Cross multiply
    5,531.40x = 7,630.56 × 3,291.60
  4. Step 4: Simplify right side
    5,531.40x = 25,116,751.30
  5. Step 5: Solve for x
    x = 25,116,751.30/5,531.40
  6. Step 6: Final answer
    x = 4,540.76

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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.