Home / 2,617.29-3,611.93-1,438.47

Finding the Fourth Proportional to 2,617.29, 3,611.93 and 1,438.47

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Solution

The fourth proportional to 2,617.29, 3,611.93 and 1,438.47 is: 1,985.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.29 : 3,611.93 = 1,438.47 : x
  2. Step 2: Convert to fraction form
    2,617.29/3,611.93 = 1,438.47/x
  3. Step 3: Cross multiply
    2,617.29x = 3,611.93 × 1,438.47
  4. Step 4: Simplify right side
    2,617.29x = 5,195,645.75
  5. Step 5: Solve for x
    x = 5,195,645.75/2,617.29
  6. Step 6: Final answer
    x = 1,985.12

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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.