Home / 5,170.47-7,786.10-3,719.76

Finding the Fourth Proportional to 5,170.47, 7,786.10 and 3,719.76

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Solution

The fourth proportional to 5,170.47, 7,786.10 and 3,719.76 is: 5,601.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.47 : 7,786.10 = 3,719.76 : x
  2. Step 2: Convert to fraction form
    5,170.47/7,786.10 = 3,719.76/x
  3. Step 3: Cross multiply
    5,170.47x = 7,786.10 × 3,719.76
  4. Step 4: Simplify right side
    5,170.47x = 28,962,423.34
  5. Step 5: Solve for x
    x = 28,962,423.34/5,170.47
  6. Step 6: Final answer
    x = 5,601.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.