Home / 7,176.79-10,765.07-3,479.34

Finding the Fourth Proportional to 7,176.79, 10,765.07 and 3,479.34

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Solution

The fourth proportional to 7,176.79, 10,765.07 and 3,479.34 is: 5,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.79 : 10,765.07 = 3,479.34 : x
  2. Step 2: Convert to fraction form
    7,176.79/10,765.07 = 3,479.34/x
  3. Step 3: Cross multiply
    7,176.79x = 10,765.07 × 3,479.34
  4. Step 4: Simplify right side
    7,176.79x = 37,455,338.65
  5. Step 5: Solve for x
    x = 37,455,338.65/7,176.79
  6. Step 6: Final answer
    x = 5,218.95

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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.