Home / 3,397.95-5,097.78-1,318.10

Finding the Fourth Proportional to 3,397.95, 5,097.78 and 1,318.10

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Solution

The fourth proportional to 3,397.95, 5,097.78 and 1,318.10 is: 1,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.95 : 5,097.78 = 1,318.10 : x
  2. Step 2: Convert to fraction form
    3,397.95/5,097.78 = 1,318.10/x
  3. Step 3: Cross multiply
    3,397.95x = 5,097.78 × 1,318.10
  4. Step 4: Simplify right side
    3,397.95x = 6,719,383.82
  5. Step 5: Solve for x
    x = 6,719,383.82/3,397.95
  6. Step 6: Final answer
    x = 1,977.48

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1.5x scale

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.