Home / 1,318.44-1,816.38-1,097.04

Finding the Fourth Proportional to 1,318.44, 1,816.38 and 1,097.04

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Solution

The fourth proportional to 1,318.44, 1,816.38 and 1,097.04 is: 1,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.44 : 1,816.38 = 1,097.04 : x
  2. Step 2: Convert to fraction form
    1,318.44/1,816.38 = 1,097.04/x
  3. Step 3: Cross multiply
    1,318.44x = 1,816.38 × 1,097.04
  4. Step 4: Simplify right side
    1,318.44x = 1,992,641.52
  5. Step 5: Solve for x
    x = 1,992,641.52/1,318.44
  6. Step 6: Final answer
    x = 1,511.36

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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.