Home / 2,790.93-3,851.14-1,671.72

Finding the Fourth Proportional to 2,790.93, 3,851.14 and 1,671.72

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Solution

The fourth proportional to 2,790.93, 3,851.14 and 1,671.72 is: 2,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.93 : 3,851.14 = 1,671.72 : x
  2. Step 2: Convert to fraction form
    2,790.93/3,851.14 = 1,671.72/x
  3. Step 3: Cross multiply
    2,790.93x = 3,851.14 × 1,671.72
  4. Step 4: Simplify right side
    2,790.93x = 6,438,027.76
  5. Step 5: Solve for x
    x = 6,438,027.76/2,790.93
  6. Step 6: Final answer
    x = 2,306.77

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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.