Home / 5,555.05-7,665.74-3,287.86

Finding the Fourth Proportional to 5,555.05, 7,665.74 and 3,287.86

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Solution

The fourth proportional to 5,555.05, 7,665.74 and 3,287.86 is: 4,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.05 : 7,665.74 = 3,287.86 : x
  2. Step 2: Convert to fraction form
    5,555.05/7,665.74 = 3,287.86/x
  3. Step 3: Cross multiply
    5,555.05x = 7,665.74 × 3,287.86
  4. Step 4: Simplify right side
    5,555.05x = 25,203,844.31
  5. Step 5: Solve for x
    x = 25,203,844.31/5,555.05
  6. Step 6: Final answer
    x = 4,537.11

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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.