Home / 1,972.17-2,958.24-511.35

Finding the Fourth Proportional to 1,972.17, 2,958.24 and 511.35

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Solution

The fourth proportional to 1,972.17, 2,958.24 and 511.35 is: 767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.17 : 2,958.24 = 511.35 : x
  2. Step 2: Convert to fraction form
    1,972.17/2,958.24 = 511.35/x
  3. Step 3: Cross multiply
    1,972.17x = 2,958.24 × 511.35
  4. Step 4: Simplify right side
    1,972.17x = 1,512,696.02
  5. Step 5: Solve for x
    x = 1,512,696.02/1,972.17
  6. Step 6: Final answer
    x = 767.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.