Home / 2,356.59-3,538.37-1,318.64

Finding the Fourth Proportional to 2,356.59, 3,538.37 and 1,318.64

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Solution

The fourth proportional to 2,356.59, 3,538.37 and 1,318.64 is: 1,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.59 : 3,538.37 = 1,318.64 : x
  2. Step 2: Convert to fraction form
    2,356.59/3,538.37 = 1,318.64/x
  3. Step 3: Cross multiply
    2,356.59x = 3,538.37 × 1,318.64
  4. Step 4: Simplify right side
    2,356.59x = 4,665,811.93
  5. Step 5: Solve for x
    x = 4,665,811.93/2,356.59
  6. Step 6: Final answer
    x = 1,979.90

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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.