Home / 6,115.72-9,172.38-1,956.20

Finding the Fourth Proportional to 6,115.72, 9,172.38 and 1,956.20

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Solution

The fourth proportional to 6,115.72, 9,172.38 and 1,956.20 is: 2,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.72 : 9,172.38 = 1,956.20 : x
  2. Step 2: Convert to fraction form
    6,115.72/9,172.38 = 1,956.20/x
  3. Step 3: Cross multiply
    6,115.72x = 9,172.38 × 1,956.20
  4. Step 4: Simplify right side
    6,115.72x = 17,943,009.76
  5. Step 5: Solve for x
    x = 17,943,009.76/6,115.72
  6. Step 6: Final answer
    x = 2,933.92

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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.