Home / 3,873.11-5,810.35-1,407.72

Finding the Fourth Proportional to 3,873.11, 5,810.35 and 1,407.72

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Solution

The fourth proportional to 3,873.11, 5,810.35 and 1,407.72 is: 2,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.11 : 5,810.35 = 1,407.72 : x
  2. Step 2: Convert to fraction form
    3,873.11/5,810.35 = 1,407.72/x
  3. Step 3: Cross multiply
    3,873.11x = 5,810.35 × 1,407.72
  4. Step 4: Simplify right side
    3,873.11x = 8,179,342.38
  5. Step 5: Solve for x
    x = 8,179,342.38/3,873.11
  6. Step 6: Final answer
    x = 2,111.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.