Home / 5,318.14-7,340.69-3,638.91

Finding the Fourth Proportional to 5,318.14, 7,340.69 and 3,638.91

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Solution

The fourth proportional to 5,318.14, 7,340.69 and 3,638.91 is: 5,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.14 : 7,340.69 = 3,638.91 : x
  2. Step 2: Convert to fraction form
    5,318.14/7,340.69 = 3,638.91/x
  3. Step 3: Cross multiply
    5,318.14x = 7,340.69 × 3,638.91
  4. Step 4: Simplify right side
    5,318.14x = 26,712,110.25
  5. Step 5: Solve for x
    x = 26,712,110.25/5,318.14
  6. Step 6: Final answer
    x = 5,022.83

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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.