Home / 7,077.80-10,613.97-3,378.13

Finding the Fourth Proportional to 7,077.80, 10,613.97 and 3,378.13

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Solution

The fourth proportional to 7,077.80, 10,613.97 and 3,378.13 is: 5,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.80 : 10,613.97 = 3,378.13 : x
  2. Step 2: Convert to fraction form
    7,077.80/10,613.97 = 3,378.13/x
  3. Step 3: Cross multiply
    7,077.80x = 10,613.97 × 3,378.13
  4. Step 4: Simplify right side
    7,077.80x = 35,855,343.94
  5. Step 5: Solve for x
    x = 35,855,343.94/7,077.80
  6. Step 6: Final answer
    x = 5,065.89

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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.