Home / 5,106.78-7,658.96-1,408.93

Finding the Fourth Proportional to 5,106.78, 7,658.96 and 1,408.93

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Solution

The fourth proportional to 5,106.78, 7,658.96 and 1,408.93 is: 2,113.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.78 : 7,658.96 = 1,408.93 : x
  2. Step 2: Convert to fraction form
    5,106.78/7,658.96 = 1,408.93/x
  3. Step 3: Cross multiply
    5,106.78x = 7,658.96 × 1,408.93
  4. Step 4: Simplify right side
    5,106.78x = 10,790,912.32
  5. Step 5: Solve for x
    x = 10,790,912.32/5,106.78
  6. Step 6: Final answer
    x = 2,113.06

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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.