Home / 6,640.65-9,161.91-4,284.36

Finding the Fourth Proportional to 6,640.65, 9,161.91 and 4,284.36

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Solution

The fourth proportional to 6,640.65, 9,161.91 and 4,284.36 is: 5,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.65 : 9,161.91 = 4,284.36 : x
  2. Step 2: Convert to fraction form
    6,640.65/9,161.91 = 4,284.36/x
  3. Step 3: Cross multiply
    6,640.65x = 9,161.91 × 4,284.36
  4. Step 4: Simplify right side
    6,640.65x = 39,252,920.73
  5. Step 5: Solve for x
    x = 39,252,920.73/6,640.65
  6. Step 6: Final answer
    x = 5,911.01

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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.