Home / 2,870.44-3,961.20-1,691.51

Finding the Fourth Proportional to 2,870.44, 3,961.20 and 1,691.51

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Solution

The fourth proportional to 2,870.44, 3,961.20 and 1,691.51 is: 2,334.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.44 : 3,961.20 = 1,691.51 : x
  2. Step 2: Convert to fraction form
    2,870.44/3,961.20 = 1,691.51/x
  3. Step 3: Cross multiply
    2,870.44x = 3,961.20 × 1,691.51
  4. Step 4: Simplify right side
    2,870.44x = 6,700,407.09
  5. Step 5: Solve for x
    x = 6,700,407.09/2,870.44
  6. Step 6: Final answer
    x = 2,334.28

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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.