Home / 7,738.81-10,679.66-4,202.08

Finding the Fourth Proportional to 7,738.81, 10,679.66 and 4,202.08

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Solution

The fourth proportional to 7,738.81, 10,679.66 and 4,202.08 is: 5,798.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.81 : 10,679.66 = 4,202.08 : x
  2. Step 2: Convert to fraction form
    7,738.81/10,679.66 = 4,202.08/x
  3. Step 3: Cross multiply
    7,738.81x = 10,679.66 × 4,202.08
  4. Step 4: Simplify right side
    7,738.81x = 44,876,785.69
  5. Step 5: Solve for x
    x = 44,876,785.69/7,738.81
  6. Step 6: Final answer
    x = 5,798.93

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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.