Home / 2,116.61-3,159.48-1,943.27

Finding the Fourth Proportional to 2,116.61, 3,159.48 and 1,943.27

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Solution

The fourth proportional to 2,116.61, 3,159.48 and 1,943.27 is: 2,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.61 : 3,159.48 = 1,943.27 : x
  2. Step 2: Convert to fraction form
    2,116.61/3,159.48 = 1,943.27/x
  3. Step 3: Cross multiply
    2,116.61x = 3,159.48 × 1,943.27
  4. Step 4: Simplify right side
    2,116.61x = 6,139,706.90
  5. Step 5: Solve for x
    x = 6,139,706.90/2,116.61
  6. Step 6: Final answer
    x = 2,900.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.