Home / 1,307.68-1,958.46-1,296.64

Finding the Fourth Proportional to 1,307.68, 1,958.46 and 1,296.64

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Solution

The fourth proportional to 1,307.68, 1,958.46 and 1,296.64 is: 1,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.68 : 1,958.46 = 1,296.64 : x
  2. Step 2: Convert to fraction form
    1,307.68/1,958.46 = 1,296.64/x
  3. Step 3: Cross multiply
    1,307.68x = 1,958.46 × 1,296.64
  4. Step 4: Simplify right side
    1,307.68x = 2,539,417.57
  5. Step 5: Solve for x
    x = 2,539,417.57/1,307.68
  6. Step 6: Final answer
    x = 1,941.93

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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.