Home / 5,408.14-8,114.56-1,900.66

Finding the Fourth Proportional to 5,408.14, 8,114.56 and 1,900.66

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Solution

The fourth proportional to 5,408.14, 8,114.56 and 1,900.66 is: 2,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.14 : 8,114.56 = 1,900.66 : x
  2. Step 2: Convert to fraction form
    5,408.14/8,114.56 = 1,900.66/x
  3. Step 3: Cross multiply
    5,408.14x = 8,114.56 × 1,900.66
  4. Step 4: Simplify right side
    5,408.14x = 15,423,019.61
  5. Step 5: Solve for x
    x = 15,423,019.61/5,408.14
  6. Step 6: Final answer
    x = 2,851.82

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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.