Home / 5,415.19-7,469.59-3,288.65

Finding the Fourth Proportional to 5,415.19, 7,469.59 and 3,288.65

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Solution

The fourth proportional to 5,415.19, 7,469.59 and 3,288.65 is: 4,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.19 : 7,469.59 = 3,288.65 : x
  2. Step 2: Convert to fraction form
    5,415.19/7,469.59 = 3,288.65/x
  3. Step 3: Cross multiply
    5,415.19x = 7,469.59 × 3,288.65
  4. Step 4: Simplify right side
    5,415.19x = 24,564,867.15
  5. Step 5: Solve for x
    x = 24,564,867.15/5,415.19
  6. Step 6: Final answer
    x = 4,536.29

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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.