Home / 7,087.10-9,778.92-4,103.06

Finding the Fourth Proportional to 7,087.10, 9,778.92 and 4,103.06

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Solution

The fourth proportional to 7,087.10, 9,778.92 and 4,103.06 is: 5,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.10 : 9,778.92 = 4,103.06 : x
  2. Step 2: Convert to fraction form
    7,087.10/9,778.92 = 4,103.06/x
  3. Step 3: Cross multiply
    7,087.10x = 9,778.92 × 4,103.06
  4. Step 4: Simplify right side
    7,087.10x = 40,123,495.50
  5. Step 5: Solve for x
    x = 40,123,495.50/7,087.10
  6. Step 6: Final answer
    x = 5,661.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.