Home / 5,418.60-8,122.30-2,948.20

Finding the Fourth Proportional to 5,418.60, 8,122.30 and 2,948.20

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Solution

The fourth proportional to 5,418.60, 8,122.30 and 2,948.20 is: 4,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.60 : 8,122.30 = 2,948.20 : x
  2. Step 2: Convert to fraction form
    5,418.60/8,122.30 = 2,948.20/x
  3. Step 3: Cross multiply
    5,418.60x = 8,122.30 × 2,948.20
  4. Step 4: Simplify right side
    5,418.60x = 23,946,164.86
  5. Step 5: Solve for x
    x = 23,946,164.86/5,418.60
  6. Step 6: Final answer
    x = 4,419.25

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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.