Home / 3,122.18-4,680.20-1,559.84

Finding the Fourth Proportional to 3,122.18, 4,680.20 and 1,559.84

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Solution

The fourth proportional to 3,122.18, 4,680.20 and 1,559.84 is: 2,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.18 : 4,680.20 = 1,559.84 : x
  2. Step 2: Convert to fraction form
    3,122.18/4,680.20 = 1,559.84/x
  3. Step 3: Cross multiply
    3,122.18x = 4,680.20 × 1,559.84
  4. Step 4: Simplify right side
    3,122.18x = 7,300,331.97
  5. Step 5: Solve for x
    x = 7,300,331.97/3,122.18
  6. Step 6: Final answer
    x = 2,338.22

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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.