Home / 1,972.44-2,719.62-1,307.88

Finding the Fourth Proportional to 1,972.44, 2,719.62 and 1,307.88

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Solution

The fourth proportional to 1,972.44, 2,719.62 and 1,307.88 is: 1,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.44 : 2,719.62 = 1,307.88 : x
  2. Step 2: Convert to fraction form
    1,972.44/2,719.62 = 1,307.88/x
  3. Step 3: Cross multiply
    1,972.44x = 2,719.62 × 1,307.88
  4. Step 4: Simplify right side
    1,972.44x = 3,556,936.61
  5. Step 5: Solve for x
    x = 3,556,936.61/1,972.44
  6. Step 6: Final answer
    x = 1,803.32

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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.