Home / 5,315.17-7,334.80-3,076.74

Finding the Fourth Proportional to 5,315.17, 7,334.80 and 3,076.74

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Solution

The fourth proportional to 5,315.17, 7,334.80 and 3,076.74 is: 4,245.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.17 : 7,334.80 = 3,076.74 : x
  2. Step 2: Convert to fraction form
    5,315.17/7,334.80 = 3,076.74/x
  3. Step 3: Cross multiply
    5,315.17x = 7,334.80 × 3,076.74
  4. Step 4: Simplify right side
    5,315.17x = 22,567,272.55
  5. Step 5: Solve for x
    x = 22,567,272.55/5,315.17
  6. Step 6: Final answer
    x = 4,245.82

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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.