Home / 6,619.16-9,920.91-2,913.65

Finding the Fourth Proportional to 6,619.16, 9,920.91 and 2,913.65

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Solution

The fourth proportional to 6,619.16, 9,920.91 and 2,913.65 is: 4,367.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.16 : 9,920.91 = 2,913.65 : x
  2. Step 2: Convert to fraction form
    6,619.16/9,920.91 = 2,913.65/x
  3. Step 3: Cross multiply
    6,619.16x = 9,920.91 × 2,913.65
  4. Step 4: Simplify right side
    6,619.16x = 28,906,009.82
  5. Step 5: Solve for x
    x = 28,906,009.82/6,619.16
  6. Step 6: Final answer
    x = 4,367.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.