Home / 7,085.10-9,776.41-4,251.87

Finding the Fourth Proportional to 7,085.10, 9,776.41 and 4,251.87

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Solution

The fourth proportional to 7,085.10, 9,776.41 and 4,251.87 is: 5,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.10 : 9,776.41 = 4,251.87 : x
  2. Step 2: Convert to fraction form
    7,085.10/9,776.41 = 4,251.87/x
  3. Step 3: Cross multiply
    7,085.10x = 9,776.41 × 4,251.87
  4. Step 4: Simplify right side
    7,085.10x = 41,568,003.13
  5. Step 5: Solve for x
    x = 41,568,003.13/7,085.10
  6. Step 6: Final answer
    x = 5,866.96

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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.