Home / 4,101.02-5,661.24-2,778.74

Finding the Fourth Proportional to 4,101.02, 5,661.24 and 2,778.74

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Solution

The fourth proportional to 4,101.02, 5,661.24 and 2,778.74 is: 3,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.02 : 5,661.24 = 2,778.74 : x
  2. Step 2: Convert to fraction form
    4,101.02/5,661.24 = 2,778.74/x
  3. Step 3: Cross multiply
    4,101.02x = 5,661.24 × 2,778.74
  4. Step 4: Simplify right side
    4,101.02x = 15,731,114.04
  5. Step 5: Solve for x
    x = 15,731,114.04/4,101.02
  6. Step 6: Final answer
    x = 3,835.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.