Home / 5,491.56-7,578.18-3,101.63

Finding the Fourth Proportional to 5,491.56, 7,578.18 and 3,101.63

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Solution

The fourth proportional to 5,491.56, 7,578.18 and 3,101.63 is: 4,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.56 : 7,578.18 = 3,101.63 : x
  2. Step 2: Convert to fraction form
    5,491.56/7,578.18 = 3,101.63/x
  3. Step 3: Cross multiply
    5,491.56x = 7,578.18 × 3,101.63
  4. Step 4: Simplify right side
    5,491.56x = 23,504,684.17
  5. Step 5: Solve for x
    x = 23,504,684.17/5,491.56
  6. Step 6: Final answer
    x = 4,280.15

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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.