Home / 4,105.11-5,663.08-2,688.19

Finding the Fourth Proportional to 4,105.11, 5,663.08 and 2,688.19

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Solution

The fourth proportional to 4,105.11, 5,663.08 and 2,688.19 is: 3,708.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.11 : 5,663.08 = 2,688.19 : x
  2. Step 2: Convert to fraction form
    4,105.11/5,663.08 = 2,688.19/x
  3. Step 3: Cross multiply
    4,105.11x = 5,663.08 × 2,688.19
  4. Step 4: Simplify right side
    4,105.11x = 15,223,412.89
  5. Step 5: Solve for x
    x = 15,223,412.89/4,105.11
  6. Step 6: Final answer
    x = 3,708.41

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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.