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Finding the Fourth Proportional to 5,559.90, 8,319.60 and 4,101.90

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Solution

The fourth proportional to 5,559.90, 8,319.60 and 4,101.90 is: 6,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.90 : 8,319.60 = 4,101.90 : x
  2. Step 2: Convert to fraction form
    5,559.90/8,319.60 = 4,101.90/x
  3. Step 3: Cross multiply
    5,559.90x = 8,319.60 × 4,101.90
  4. Step 4: Simplify right side
    5,559.90x = 34,126,167.24
  5. Step 5: Solve for x
    x = 34,126,167.24/5,559.90
  6. Step 6: Final answer
    x = 6,137.91

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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.