Home / 5,106.98-7,647.51-4,078.82

Finding the Fourth Proportional to 5,106.98, 7,647.51 and 4,078.82

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Solution

The fourth proportional to 5,106.98, 7,647.51 and 4,078.82 is: 6,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.98 : 7,647.51 = 4,078.82 : x
  2. Step 2: Convert to fraction form
    5,106.98/7,647.51 = 4,078.82/x
  3. Step 3: Cross multiply
    5,106.98x = 7,647.51 × 4,078.82
  4. Step 4: Simplify right side
    5,106.98x = 31,192,816.74
  5. Step 5: Solve for x
    x = 31,192,816.74/5,106.98
  6. Step 6: Final answer
    x = 6,107.88

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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.