Home / 2,778.02-4,166.15-829.70

Finding the Fourth Proportional to 2,778.02, 4,166.15 and 829.70

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Solution

The fourth proportional to 2,778.02, 4,166.15 and 829.70 is: 1,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.02 : 4,166.15 = 829.70 : x
  2. Step 2: Convert to fraction form
    2,778.02/4,166.15 = 829.70/x
  3. Step 3: Cross multiply
    2,778.02x = 4,166.15 × 829.70
  4. Step 4: Simplify right side
    2,778.02x = 3,456,654.66
  5. Step 5: Solve for x
    x = 3,456,654.66/2,778.02
  6. Step 6: Final answer
    x = 1,244.29

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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.