Home / 5,689.38-7,846.43-3,699.21

Finding the Fourth Proportional to 5,689.38, 7,846.43 and 3,699.21

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Solution

The fourth proportional to 5,689.38, 7,846.43 and 3,699.21 is: 5,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.38 : 7,846.43 = 3,699.21 : x
  2. Step 2: Convert to fraction form
    5,689.38/7,846.43 = 3,699.21/x
  3. Step 3: Cross multiply
    5,689.38x = 7,846.43 × 3,699.21
  4. Step 4: Simplify right side
    5,689.38x = 29,025,592.32
  5. Step 5: Solve for x
    x = 29,025,592.32/5,689.38
  6. Step 6: Final answer
    x = 5,101.71

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Half scale
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Double scale
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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.