Home / 3,331.60-4,990.20-2,966.80

Finding the Fourth Proportional to 3,331.60, 4,990.20 and 2,966.80

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Solution

The fourth proportional to 3,331.60, 4,990.20 and 2,966.80 is: 4,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.60 : 4,990.20 = 2,966.80 : x
  2. Step 2: Convert to fraction form
    3,331.60/4,990.20 = 2,966.80/x
  3. Step 3: Cross multiply
    3,331.60x = 4,990.20 × 2,966.80
  4. Step 4: Simplify right side
    3,331.60x = 14,804,925.36
  5. Step 5: Solve for x
    x = 14,804,925.36/3,331.60
  6. Step 6: Final answer
    x = 4,443.79

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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.