Home / 5,315.39-7,334.65-3,076.79

Finding the Fourth Proportional to 5,315.39, 7,334.65 and 3,076.79

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Solution

The fourth proportional to 5,315.39, 7,334.65 and 3,076.79 is: 4,245.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.39 : 7,334.65 = 3,076.79 : x
  2. Step 2: Convert to fraction form
    5,315.39/7,334.65 = 3,076.79/x
  3. Step 3: Cross multiply
    5,315.39x = 7,334.65 × 3,076.79
  4. Step 4: Simplify right side
    5,315.39x = 22,567,144.95
  5. Step 5: Solve for x
    x = 22,567,144.95/5,315.39
  6. Step 6: Final answer
    x = 4,245.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.