Home / 3,561.23-4,915.86-3,187.55

Finding the Fourth Proportional to 3,561.23, 4,915.86 and 3,187.55

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Solution

The fourth proportional to 3,561.23, 4,915.86 and 3,187.55 is: 4,400.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.23 : 4,915.86 = 3,187.55 : x
  2. Step 2: Convert to fraction form
    3,561.23/4,915.86 = 3,187.55/x
  3. Step 3: Cross multiply
    3,561.23x = 4,915.86 × 3,187.55
  4. Step 4: Simplify right side
    3,561.23x = 15,669,524.96
  5. Step 5: Solve for x
    x = 15,669,524.96/3,561.23
  6. Step 6: Final answer
    x = 4,400.03

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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.