Home / 1,296.15-1,942.60-1,021.16

Finding the Fourth Proportional to 1,296.15, 1,942.60 and 1,021.16

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Solution

The fourth proportional to 1,296.15, 1,942.60 and 1,021.16 is: 1,530.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.15 : 1,942.60 = 1,021.16 : x
  2. Step 2: Convert to fraction form
    1,296.15/1,942.60 = 1,021.16/x
  3. Step 3: Cross multiply
    1,296.15x = 1,942.60 × 1,021.16
  4. Step 4: Simplify right side
    1,296.15x = 1,983,705.42
  5. Step 5: Solve for x
    x = 1,983,705.42/1,296.15
  6. Step 6: Final answer
    x = 1,530.46

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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.