Home / 2,651.33-3,658.66-1,531.40

Finding the Fourth Proportional to 2,651.33, 3,658.66 and 1,531.40

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Solution

The fourth proportional to 2,651.33, 3,658.66 and 1,531.40 is: 2,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.33 : 3,658.66 = 1,531.40 : x
  2. Step 2: Convert to fraction form
    2,651.33/3,658.66 = 1,531.40/x
  3. Step 3: Cross multiply
    2,651.33x = 3,658.66 × 1,531.40
  4. Step 4: Simplify right side
    2,651.33x = 5,602,849.80
  5. Step 5: Solve for x
    x = 5,602,849.80/2,651.33
  6. Step 6: Final answer
    x = 2,113.22

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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.