Home / 7,178.24-10,768.80-2,560.64

Finding the Fourth Proportional to 7,178.24, 10,768.80 and 2,560.64

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Solution

The fourth proportional to 7,178.24, 10,768.80 and 2,560.64 is: 3,841.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.24 : 10,768.80 = 2,560.64 : x
  2. Step 2: Convert to fraction form
    7,178.24/10,768.80 = 2,560.64/x
  3. Step 3: Cross multiply
    7,178.24x = 10,768.80 × 2,560.64
  4. Step 4: Simplify right side
    7,178.24x = 27,575,020.03
  5. Step 5: Solve for x
    x = 27,575,020.03/7,178.24
  6. Step 6: Final answer
    x = 3,841.47

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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.