Home / 2,971.28-4,100.82-1,852.40

Finding the Fourth Proportional to 2,971.28, 4,100.82 and 1,852.40

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Solution

The fourth proportional to 2,971.28, 4,100.82 and 1,852.40 is: 2,556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.28 : 4,100.82 = 1,852.40 : x
  2. Step 2: Convert to fraction form
    2,971.28/4,100.82 = 1,852.40/x
  3. Step 3: Cross multiply
    2,971.28x = 4,100.82 × 1,852.40
  4. Step 4: Simplify right side
    2,971.28x = 7,596,358.97
  5. Step 5: Solve for x
    x = 7,596,358.97/2,971.28
  6. Step 6: Final answer
    x = 2,556.59

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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.