Home / 3,101.45-4,280.04-1,775.08

Finding the Fourth Proportional to 3,101.45, 4,280.04 and 1,775.08

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Solution

The fourth proportional to 3,101.45, 4,280.04 and 1,775.08 is: 2,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.45 : 4,280.04 = 1,775.08 : x
  2. Step 2: Convert to fraction form
    3,101.45/4,280.04 = 1,775.08/x
  3. Step 3: Cross multiply
    3,101.45x = 4,280.04 × 1,775.08
  4. Step 4: Simplify right side
    3,101.45x = 7,597,402.70
  5. Step 5: Solve for x
    x = 7,597,402.70/3,101.45
  6. Step 6: Final answer
    x = 2,449.63

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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.