Home / 5,436.11-8,149.56-2,151.52

Finding the Fourth Proportional to 5,436.11, 8,149.56 and 2,151.52

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Solution

The fourth proportional to 5,436.11, 8,149.56 and 2,151.52 is: 3,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.11 : 8,149.56 = 2,151.52 : x
  2. Step 2: Convert to fraction form
    5,436.11/8,149.56 = 2,151.52/x
  3. Step 3: Cross multiply
    5,436.11x = 8,149.56 × 2,151.52
  4. Step 4: Simplify right side
    5,436.11x = 17,533,941.33
  5. Step 5: Solve for x
    x = 17,533,941.33/5,436.11
  6. Step 6: Final answer
    x = 3,225.46

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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.