Home / 2,617.13-3,611.70-1,438.22

Finding the Fourth Proportional to 2,617.13, 3,611.70 and 1,438.22

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Solution

The fourth proportional to 2,617.13, 3,611.70 and 1,438.22 is: 1,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.13 : 3,611.70 = 1,438.22 : x
  2. Step 2: Convert to fraction form
    2,617.13/3,611.70 = 1,438.22/x
  3. Step 3: Cross multiply
    2,617.13x = 3,611.70 × 1,438.22
  4. Step 4: Simplify right side
    2,617.13x = 5,194,428.20
  5. Step 5: Solve for x
    x = 5,194,428.20/2,617.13
  6. Step 6: Final answer
    x = 1,984.78

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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.