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Finding the Fourth Proportional to 6,836.65, 10,259.29 and 3,920.65

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Solution

The fourth proportional to 6,836.65, 10,259.29 and 3,920.65 is: 5,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,836.65 : 10,259.29 = 3,920.65 : x
  2. Step 2: Convert to fraction form
    6,836.65/10,259.29 = 3,920.65/x
  3. Step 3: Cross multiply
    6,836.65x = 10,259.29 × 3,920.65
  4. Step 4: Simplify right side
    6,836.65x = 40,223,064.59
  5. Step 5: Solve for x
    x = 40,223,064.59/6,836.65
  6. Step 6: Final answer
    x = 5,883.45

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1.5x scale

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.