Home / 4,102.68-5,661.69-2,239.68

Finding the Fourth Proportional to 4,102.68, 5,661.69 and 2,239.68

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Solution

The fourth proportional to 4,102.68, 5,661.69 and 2,239.68 is: 3,090.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.68 : 5,661.69 = 2,239.68 : x
  2. Step 2: Convert to fraction form
    4,102.68/5,661.69 = 2,239.68/x
  3. Step 3: Cross multiply
    4,102.68x = 5,661.69 × 2,239.68
  4. Step 4: Simplify right side
    4,102.68x = 12,680,345.55
  5. Step 5: Solve for x
    x = 12,680,345.55/4,102.68
  6. Step 6: Final answer
    x = 3,090.75

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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.