Home / 4,102.31-5,656.70-3,156.03

Finding the Fourth Proportional to 4,102.31, 5,656.70 and 3,156.03

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Solution

The fourth proportional to 4,102.31, 5,656.70 and 3,156.03 is: 4,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.31 : 5,656.70 = 3,156.03 : x
  2. Step 2: Convert to fraction form
    4,102.31/5,656.70 = 3,156.03/x
  3. Step 3: Cross multiply
    4,102.31x = 5,656.70 × 3,156.03
  4. Step 4: Simplify right side
    4,102.31x = 17,852,722.79
  5. Step 5: Solve for x
    x = 17,852,722.79/4,102.31
  6. Step 6: Final answer
    x = 4,351.87

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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.