Home / 5,445.38-7,513.31-3,455.21

Finding the Fourth Proportional to 5,445.38, 7,513.31 and 3,455.21

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Solution

The fourth proportional to 5,445.38, 7,513.31 and 3,455.21 is: 4,767.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.38 : 7,513.31 = 3,455.21 : x
  2. Step 2: Convert to fraction form
    5,445.38/7,513.31 = 3,455.21/x
  3. Step 3: Cross multiply
    5,445.38x = 7,513.31 × 3,455.21
  4. Step 4: Simplify right side
    5,445.38x = 25,960,091.27
  5. Step 5: Solve for x
    x = 25,960,091.27/5,445.38
  6. Step 6: Final answer
    x = 4,767.36

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Half scale
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Double scale
Find fourth proportional to 5,446.38, 7,514.69 and 3,456.21
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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.