Home / 5,514.81-7,609.61-3,156.51

Finding the Fourth Proportional to 5,514.81, 7,609.61 and 3,156.51

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Solution

The fourth proportional to 5,514.81, 7,609.61 and 3,156.51 is: 4,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.81 : 7,609.61 = 3,156.51 : x
  2. Step 2: Convert to fraction form
    5,514.81/7,609.61 = 3,156.51/x
  3. Step 3: Cross multiply
    5,514.81x = 7,609.61 × 3,156.51
  4. Step 4: Simplify right side
    5,514.81x = 24,019,794.28
  5. Step 5: Solve for x
    x = 24,019,794.28/5,514.81
  6. Step 6: Final answer
    x = 4,355.51

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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.