Home / 2,305.01-3,180.87-1,257.08

Finding the Fourth Proportional to 2,305.01, 3,180.87 and 1,257.08

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Solution

The fourth proportional to 2,305.01, 3,180.87 and 1,257.08 is: 1,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.01 : 3,180.87 = 1,257.08 : x
  2. Step 2: Convert to fraction form
    2,305.01/3,180.87 = 1,257.08/x
  3. Step 3: Cross multiply
    2,305.01x = 3,180.87 × 1,257.08
  4. Step 4: Simplify right side
    2,305.01x = 3,998,592.16
  5. Step 5: Solve for x
    x = 3,998,592.16/2,305.01
  6. Step 6: Final answer
    x = 1,734.74

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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.