Home / 3,087-4,260.24-1,761.15

Finding the Fourth Proportional to 3,087, 4,260.24 and 1,761.15

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Solution

The fourth proportional to 3,087, 4,260.24 and 1,761.15 is: 2,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087 : 4,260.24 = 1,761.15 : x
  2. Step 2: Convert to fraction form
    3,087/4,260.24 = 1,761.15/x
  3. Step 3: Cross multiply
    3,087x = 4,260.24 × 1,761.15
  4. Step 4: Simplify right side
    3,087x = 7,502,921.68
  5. Step 5: Solve for x
    x = 7,502,921.68/3,087
  6. Step 6: Final answer
    x = 2,430.49

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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.