Home / 2,881.46-3,976.65-1,670.57

Finding the Fourth Proportional to 2,881.46, 3,976.65 and 1,670.57

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Solution

The fourth proportional to 2,881.46, 3,976.65 and 1,670.57 is: 2,305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.46 : 3,976.65 = 1,670.57 : x
  2. Step 2: Convert to fraction form
    2,881.46/3,976.65 = 1,670.57/x
  3. Step 3: Cross multiply
    2,881.46x = 3,976.65 × 1,670.57
  4. Step 4: Simplify right side
    2,881.46x = 6,643,252.31
  5. Step 5: Solve for x
    x = 6,643,252.31/2,881.46
  6. Step 6: Final answer
    x = 2,305.52

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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.