Home / 5,418.16-8,140.20-3,474.16

Finding the Fourth Proportional to 5,418.16, 8,140.20 and 3,474.16

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Solution

The fourth proportional to 5,418.16, 8,140.20 and 3,474.16 is: 5,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.16 : 8,140.20 = 3,474.16 : x
  2. Step 2: Convert to fraction form
    5,418.16/8,140.20 = 3,474.16/x
  3. Step 3: Cross multiply
    5,418.16x = 8,140.20 × 3,474.16
  4. Step 4: Simplify right side
    5,418.16x = 28,280,357.23
  5. Step 5: Solve for x
    x = 28,280,357.23/5,418.16
  6. Step 6: Final answer
    x = 5,219.55

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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.