Home / 5,151.21-7,713.14-4,104.20

Finding the Fourth Proportional to 5,151.21, 7,713.14 and 4,104.20

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Solution

The fourth proportional to 5,151.21, 7,713.14 and 4,104.20 is: 6,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.21 : 7,713.14 = 4,104.20 : x
  2. Step 2: Convert to fraction form
    5,151.21/7,713.14 = 4,104.20/x
  3. Step 3: Cross multiply
    5,151.21x = 7,713.14 × 4,104.20
  4. Step 4: Simplify right side
    5,151.21x = 31,656,210.10
  5. Step 5: Solve for x
    x = 31,656,210.10/5,151.21
  6. Step 6: Final answer
    x = 6,145.39

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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.