Home / 2,761.18-3,808.89-1,817.13

Finding the Fourth Proportional to 2,761.18, 3,808.89 and 1,817.13

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Solution

The fourth proportional to 2,761.18, 3,808.89 and 1,817.13 is: 2,506.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.18 : 3,808.89 = 1,817.13 : x
  2. Step 2: Convert to fraction form
    2,761.18/3,808.89 = 1,817.13/x
  3. Step 3: Cross multiply
    2,761.18x = 3,808.89 × 1,817.13
  4. Step 4: Simplify right side
    2,761.18x = 6,921,248.29
  5. Step 5: Solve for x
    x = 6,921,248.29/2,761.18
  6. Step 6: Final answer
    x = 2,506.63

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1.5x scale

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.