Home / 2,689.10-3,711.66-1,554.93

Finding the Fourth Proportional to 2,689.10, 3,711.66 and 1,554.93

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Solution

The fourth proportional to 2,689.10, 3,711.66 and 1,554.93 is: 2,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.10 : 3,711.66 = 1,554.93 : x
  2. Step 2: Convert to fraction form
    2,689.10/3,711.66 = 1,554.93/x
  3. Step 3: Cross multiply
    2,689.10x = 3,711.66 × 1,554.93
  4. Step 4: Simplify right side
    2,689.10x = 5,771,365.65
  5. Step 5: Solve for x
    x = 5,771,365.65/2,689.10
  6. Step 6: Final answer
    x = 2,146.21

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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.