Home / 2,113.62-2,915.17-1,617.90

Finding the Fourth Proportional to 2,113.62, 2,915.17 and 1,617.90

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Solution

The fourth proportional to 2,113.62, 2,915.17 and 1,617.90 is: 2,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.62 : 2,915.17 = 1,617.90 : x
  2. Step 2: Convert to fraction form
    2,113.62/2,915.17 = 1,617.90/x
  3. Step 3: Cross multiply
    2,113.62x = 2,915.17 × 1,617.90
  4. Step 4: Simplify right side
    2,113.62x = 4,716,453.54
  5. Step 5: Solve for x
    x = 4,716,453.54/2,113.62
  6. Step 6: Final answer
    x = 2,231.46

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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.