Home / 1,694.40-2,338.42-948.35

Finding the Fourth Proportional to 1,694.40, 2,338.42 and 948.35

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Solution

The fourth proportional to 1,694.40, 2,338.42 and 948.35 is: 1,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.40 : 2,338.42 = 948.35 : x
  2. Step 2: Convert to fraction form
    1,694.40/2,338.42 = 948.35/x
  3. Step 3: Cross multiply
    1,694.40x = 2,338.42 × 948.35
  4. Step 4: Simplify right side
    1,694.40x = 2,217,644.14
  5. Step 5: Solve for x
    x = 2,217,644.14/1,694.40
  6. Step 6: Final answer
    x = 1,308.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.