Home / 3,902.22-5,383.89-2,330.55

Finding the Fourth Proportional to 3,902.22, 5,383.89 and 2,330.55

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Solution

The fourth proportional to 3,902.22, 5,383.89 and 2,330.55 is: 3,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.22 : 5,383.89 = 2,330.55 : x
  2. Step 2: Convert to fraction form
    3,902.22/5,383.89 = 2,330.55/x
  3. Step 3: Cross multiply
    3,902.22x = 5,383.89 × 2,330.55
  4. Step 4: Simplify right side
    3,902.22x = 12,547,424.84
  5. Step 5: Solve for x
    x = 12,547,424.84/3,902.22
  6. Step 6: Final answer
    x = 3,215.46

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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.