Home / 1,345.82-2,007.18-1,318.41

Finding the Fourth Proportional to 1,345.82, 2,007.18 and 1,318.41

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Solution

The fourth proportional to 1,345.82, 2,007.18 and 1,318.41 is: 1,966.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.82 : 2,007.18 = 1,318.41 : x
  2. Step 2: Convert to fraction form
    1,345.82/2,007.18 = 1,318.41/x
  3. Step 3: Cross multiply
    1,345.82x = 2,007.18 × 1,318.41
  4. Step 4: Simplify right side
    1,345.82x = 2,646,286.18
  5. Step 5: Solve for x
    x = 2,646,286.18/1,345.82
  6. Step 6: Final answer
    x = 1,966.31

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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.