Home / 4,102.79-5,661.81-2,239.79

Finding the Fourth Proportional to 4,102.79, 5,661.81 and 2,239.79

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Solution

The fourth proportional to 4,102.79, 5,661.81 and 2,239.79 is: 3,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.79 : 5,661.81 = 2,239.79 : x
  2. Step 2: Convert to fraction form
    4,102.79/5,661.81 = 2,239.79/x
  3. Step 3: Cross multiply
    4,102.79x = 5,661.81 × 2,239.79
  4. Step 4: Simplify right side
    4,102.79x = 12,681,237.11
  5. Step 5: Solve for x
    x = 12,681,237.11/4,102.79
  6. Step 6: Final answer
    x = 3,090.89

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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.