Home / 2,617.05-3,611.60-1,438.19

Finding the Fourth Proportional to 2,617.05, 3,611.60 and 1,438.19

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Solution

The fourth proportional to 2,617.05, 3,611.60 and 1,438.19 is: 1,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.05 : 3,611.60 = 1,438.19 : x
  2. Step 2: Convert to fraction form
    2,617.05/3,611.60 = 1,438.19/x
  3. Step 3: Cross multiply
    2,617.05x = 3,611.60 × 1,438.19
  4. Step 4: Simplify right side
    2,617.05x = 5,194,167.00
  5. Step 5: Solve for x
    x = 5,194,167.00/2,617.05
  6. Step 6: Final answer
    x = 1,984.74

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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.