Home / 2,616.95-3,611.37-1,438.08

Finding the Fourth Proportional to 2,616.95, 3,611.37 and 1,438.08

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Solution

The fourth proportional to 2,616.95, 3,611.37 and 1,438.08 is: 1,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.95 : 3,611.37 = 1,438.08 : x
  2. Step 2: Convert to fraction form
    2,616.95/3,611.37 = 1,438.08/x
  3. Step 3: Cross multiply
    2,616.95x = 3,611.37 × 1,438.08
  4. Step 4: Simplify right side
    2,616.95x = 5,193,438.97
  5. Step 5: Solve for x
    x = 5,193,438.97/2,616.95
  6. Step 6: Final answer
    x = 1,984.54

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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.