Home / 3,102.47-4,280.19-1,775.46

Finding the Fourth Proportional to 3,102.47, 4,280.19 and 1,775.46

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Solution

The fourth proportional to 3,102.47, 4,280.19 and 1,775.46 is: 2,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.47 : 4,280.19 = 1,775.46 : x
  2. Step 2: Convert to fraction form
    3,102.47/4,280.19 = 1,775.46/x
  3. Step 3: Cross multiply
    3,102.47x = 4,280.19 × 1,775.46
  4. Step 4: Simplify right side
    3,102.47x = 7,599,306.14
  5. Step 5: Solve for x
    x = 7,599,306.14/3,102.47
  6. Step 6: Final answer
    x = 2,449.44

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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.