Home / 7,090.11-9,785.84-4,257.61

Finding the Fourth Proportional to 7,090.11, 9,785.84 and 4,257.61

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Solution

The fourth proportional to 7,090.11, 9,785.84 and 4,257.61 is: 5,876.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.11 : 9,785.84 = 4,257.61 : x
  2. Step 2: Convert to fraction form
    7,090.11/9,785.84 = 4,257.61/x
  3. Step 3: Cross multiply
    7,090.11x = 9,785.84 × 4,257.61
  4. Step 4: Simplify right side
    7,090.11x = 41,664,244.49
  5. Step 5: Solve for x
    x = 41,664,244.49/7,090.11
  6. Step 6: Final answer
    x = 5,876.39

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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.