Home / 1,694.31-2,338.47-948.22

Finding the Fourth Proportional to 1,694.31, 2,338.47 and 948.22

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Solution

The fourth proportional to 1,694.31, 2,338.47 and 948.22 is: 1,308.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.31 : 2,338.47 = 948.22 : x
  2. Step 2: Convert to fraction form
    1,694.31/2,338.47 = 948.22/x
  3. Step 3: Cross multiply
    1,694.31x = 2,338.47 × 948.22
  4. Step 4: Simplify right side
    1,694.31x = 2,217,384.02
  5. Step 5: Solve for x
    x = 2,217,384.02/1,694.31
  6. Step 6: Final answer
    x = 1,308.72

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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.