Home / 5,555.70-7,663.68-3,316.86

Finding the Fourth Proportional to 5,555.70, 7,663.68 and 3,316.86

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Solution

The fourth proportional to 5,555.70, 7,663.68 and 3,316.86 is: 4,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.70 : 7,663.68 = 3,316.86 : x
  2. Step 2: Convert to fraction form
    5,555.70/7,663.68 = 3,316.86/x
  3. Step 3: Cross multiply
    5,555.70x = 7,663.68 × 3,316.86
  4. Step 4: Simplify right side
    5,555.70x = 25,419,353.64
  5. Step 5: Solve for x
    x = 25,419,353.64/5,555.70
  6. Step 6: Final answer
    x = 4,575.36

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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.