Home / 5,480.38-8,219.49-1,970.29

Finding the Fourth Proportional to 5,480.38, 8,219.49 and 1,970.29

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Solution

The fourth proportional to 5,480.38, 8,219.49 and 1,970.29 is: 2,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.38 : 8,219.49 = 1,970.29 : x
  2. Step 2: Convert to fraction form
    5,480.38/8,219.49 = 1,970.29/x
  3. Step 3: Cross multiply
    5,480.38x = 8,219.49 × 1,970.29
  4. Step 4: Simplify right side
    5,480.38x = 16,194,778.95
  5. Step 5: Solve for x
    x = 16,194,778.95/5,480.38
  6. Step 6: Final answer
    x = 2,955.05

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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.