Home / 1,972.83-2,720.37-1,343.46

Finding the Fourth Proportional to 1,972.83, 2,720.37 and 1,343.46

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Solution

The fourth proportional to 1,972.83, 2,720.37 and 1,343.46 is: 1,852.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.83 : 2,720.37 = 1,343.46 : x
  2. Step 2: Convert to fraction form
    1,972.83/2,720.37 = 1,343.46/x
  3. Step 3: Cross multiply
    1,972.83x = 2,720.37 × 1,343.46
  4. Step 4: Simplify right side
    1,972.83x = 3,654,708.28
  5. Step 5: Solve for x
    x = 3,654,708.28/1,972.83
  6. Step 6: Final answer
    x = 1,852.52

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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.