Home / 1,296.60-1,935.84-1,282.92

Finding the Fourth Proportional to 1,296.60, 1,935.84 and 1,282.92

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Solution

The fourth proportional to 1,296.60, 1,935.84 and 1,282.92 is: 1,915.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.60 : 1,935.84 = 1,282.92 : x
  2. Step 2: Convert to fraction form
    1,296.60/1,935.84 = 1,282.92/x
  3. Step 3: Cross multiply
    1,296.60x = 1,935.84 × 1,282.92
  4. Step 4: Simplify right side
    1,296.60x = 2,483,527.85
  5. Step 5: Solve for x
    x = 2,483,527.85/1,296.60
  6. Step 6: Final answer
    x = 1,915.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.