Home / 6,113.09-9,168.55-2,780.56

Finding the Fourth Proportional to 6,113.09, 9,168.55 and 2,780.56

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Solution

The fourth proportional to 6,113.09, 9,168.55 and 2,780.56 is: 4,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.09 : 9,168.55 = 2,780.56 : x
  2. Step 2: Convert to fraction form
    6,113.09/9,168.55 = 2,780.56/x
  3. Step 3: Cross multiply
    6,113.09x = 9,168.55 × 2,780.56
  4. Step 4: Simplify right side
    6,113.09x = 25,493,733.26
  5. Step 5: Solve for x
    x = 25,493,733.26/6,113.09
  6. Step 6: Final answer
    x = 4,170.35

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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.