Home / 3,102.02-4,280.41-1,775.85

Finding the Fourth Proportional to 3,102.02, 4,280.41 and 1,775.85

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Solution

The fourth proportional to 3,102.02, 4,280.41 and 1,775.85 is: 2,450.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.02 : 4,280.41 = 1,775.85 : x
  2. Step 2: Convert to fraction form
    3,102.02/4,280.41 = 1,775.85/x
  3. Step 3: Cross multiply
    3,102.02x = 4,280.41 × 1,775.85
  4. Step 4: Simplify right side
    3,102.02x = 7,601,366.10
  5. Step 5: Solve for x
    x = 7,601,366.10/3,102.02
  6. Step 6: Final answer
    x = 2,450.46

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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.