Home / 5,147.40-7,098.20-4,578.44

Finding the Fourth Proportional to 5,147.40, 7,098.20 and 4,578.44

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Solution

The fourth proportional to 5,147.40, 7,098.20 and 4,578.44 is: 6,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.40 : 7,098.20 = 4,578.44 : x
  2. Step 2: Convert to fraction form
    5,147.40/7,098.20 = 4,578.44/x
  3. Step 3: Cross multiply
    5,147.40x = 7,098.20 × 4,578.44
  4. Step 4: Simplify right side
    5,147.40x = 32,498,647.32
  5. Step 5: Solve for x
    x = 32,498,647.32/5,147.40
  6. Step 6: Final answer
    x = 6,313.60

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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.