Home / 4,102.50-5,661.57-2,239.62

Finding the Fourth Proportional to 4,102.50, 5,661.57 and 2,239.62

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Solution

The fourth proportional to 4,102.50, 5,661.57 and 2,239.62 is: 3,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.50 : 5,661.57 = 2,239.62 : x
  2. Step 2: Convert to fraction form
    4,102.50/5,661.57 = 2,239.62/x
  3. Step 3: Cross multiply
    4,102.50x = 5,661.57 × 2,239.62
  4. Step 4: Simplify right side
    4,102.50x = 12,679,765.40
  5. Step 5: Solve for x
    x = 12,679,765.40/4,102.50
  6. Step 6: Final answer
    x = 3,090.74

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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.