Home / 7,115.88-10,678.14-2,956.26

Finding the Fourth Proportional to 7,115.88, 10,678.14 and 2,956.26

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Solution

The fourth proportional to 7,115.88, 10,678.14 and 2,956.26 is: 4,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.88 : 10,678.14 = 2,956.26 : x
  2. Step 2: Convert to fraction form
    7,115.88/10,678.14 = 2,956.26/x
  3. Step 3: Cross multiply
    7,115.88x = 10,678.14 × 2,956.26
  4. Step 4: Simplify right side
    7,115.88x = 31,567,358.16
  5. Step 5: Solve for x
    x = 31,567,358.16/7,115.88
  6. Step 6: Final answer
    x = 4,436.18

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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.