Home / 1,296.12-1,942.56-1,021.13

Finding the Fourth Proportional to 1,296.12, 1,942.56 and 1,021.13

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Solution

The fourth proportional to 1,296.12, 1,942.56 and 1,021.13 is: 1,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.12 : 1,942.56 = 1,021.13 : x
  2. Step 2: Convert to fraction form
    1,296.12/1,942.56 = 1,021.13/x
  3. Step 3: Cross multiply
    1,296.12x = 1,942.56 × 1,021.13
  4. Step 4: Simplify right side
    1,296.12x = 1,983,591.47
  5. Step 5: Solve for x
    x = 1,983,591.47/1,296.12
  6. Step 6: Final answer
    x = 1,530.41

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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.