Home / 2,912.16-4,366.08-1,180.80

Finding the Fourth Proportional to 2,912.16, 4,366.08 and 1,180.80

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Solution

The fourth proportional to 2,912.16, 4,366.08 and 1,180.80 is: 1,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.16 : 4,366.08 = 1,180.80 : x
  2. Step 2: Convert to fraction form
    2,912.16/4,366.08 = 1,180.80/x
  3. Step 3: Cross multiply
    2,912.16x = 4,366.08 × 1,180.80
  4. Step 4: Simplify right side
    2,912.16x = 5,155,467.26
  5. Step 5: Solve for x
    x = 5,155,467.26/2,912.16
  6. Step 6: Final answer
    x = 1,770.32

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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.