Home / 3,611.55-5,417.33-2,318.79

Finding the Fourth Proportional to 3,611.55, 5,417.33 and 2,318.79

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Solution

The fourth proportional to 3,611.55, 5,417.33 and 2,318.79 is: 3,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.55 : 5,417.33 = 2,318.79 : x
  2. Step 2: Convert to fraction form
    3,611.55/5,417.33 = 2,318.79/x
  3. Step 3: Cross multiply
    3,611.55x = 5,417.33 × 2,318.79
  4. Step 4: Simplify right side
    3,611.55x = 12,561,639.04
  5. Step 5: Solve for x
    x = 12,561,639.04/3,611.55
  6. Step 6: Final answer
    x = 3,478.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.