Home / 3,331.02-4,999.42-1,280.46

Finding the Fourth Proportional to 3,331.02, 4,999.42 and 1,280.46

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Solution

The fourth proportional to 3,331.02, 4,999.42 and 1,280.46 is: 1,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.02 : 4,999.42 = 1,280.46 : x
  2. Step 2: Convert to fraction form
    3,331.02/4,999.42 = 1,280.46/x
  3. Step 3: Cross multiply
    3,331.02x = 4,999.42 × 1,280.46
  4. Step 4: Simplify right side
    3,331.02x = 6,401,557.33
  5. Step 5: Solve for x
    x = 6,401,557.33/3,331.02
  6. Step 6: Final answer
    x = 1,921.80

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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.