Home / 1,972.86-2,959.26-802.82

Finding the Fourth Proportional to 1,972.86, 2,959.26 and 802.82

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Solution

The fourth proportional to 1,972.86, 2,959.26 and 802.82 is: 1,204.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.86 : 2,959.26 = 802.82 : x
  2. Step 2: Convert to fraction form
    1,972.86/2,959.26 = 802.82/x
  3. Step 3: Cross multiply
    1,972.86x = 2,959.26 × 802.82
  4. Step 4: Simplify right side
    1,972.86x = 2,375,751.44
  5. Step 5: Solve for x
    x = 2,375,751.44/1,972.86
  6. Step 6: Final answer
    x = 1,204.21

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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.