Home / 2,870.82-3,961.68-1,675.92

Finding the Fourth Proportional to 2,870.82, 3,961.68 and 1,675.92

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Solution

The fourth proportional to 2,870.82, 3,961.68 and 1,675.92 is: 2,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.82 : 3,961.68 = 1,675.92 : x
  2. Step 2: Convert to fraction form
    2,870.82/3,961.68 = 1,675.92/x
  3. Step 3: Cross multiply
    2,870.82x = 3,961.68 × 1,675.92
  4. Step 4: Simplify right side
    2,870.82x = 6,639,458.75
  5. Step 5: Solve for x
    x = 6,639,458.75/2,870.82
  6. Step 6: Final answer
    x = 2,312.74

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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.