Home / 1,934.28-2,901.42-1,286.28

Finding the Fourth Proportional to 1,934.28, 2,901.42 and 1,286.28

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Solution

The fourth proportional to 1,934.28, 2,901.42 and 1,286.28 is: 1,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.28 : 2,901.42 = 1,286.28 : x
  2. Step 2: Convert to fraction form
    1,934.28/2,901.42 = 1,286.28/x
  3. Step 3: Cross multiply
    1,934.28x = 2,901.42 × 1,286.28
  4. Step 4: Simplify right side
    1,934.28x = 3,732,038.52
  5. Step 5: Solve for x
    x = 3,732,038.52/1,934.28
  6. Step 6: Final answer
    x = 1,929.42

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1.5x scale

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.