Home / 3,427.95-5,142.17-1,480.15

Finding the Fourth Proportional to 3,427.95, 5,142.17 and 1,480.15

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Solution

The fourth proportional to 3,427.95, 5,142.17 and 1,480.15 is: 2,220.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.95 : 5,142.17 = 1,480.15 : x
  2. Step 2: Convert to fraction form
    3,427.95/5,142.17 = 1,480.15/x
  3. Step 3: Cross multiply
    3,427.95x = 5,142.17 × 1,480.15
  4. Step 4: Simplify right side
    3,427.95x = 7,611,176.51
  5. Step 5: Solve for x
    x = 7,611,176.51/3,427.95
  6. Step 6: Final answer
    x = 2,220.33

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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.