Home / 7,738.51-10,679.16-4,201.72

Finding the Fourth Proportional to 7,738.51, 10,679.16 and 4,201.72

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Solution

The fourth proportional to 7,738.51, 10,679.16 and 4,201.72 is: 5,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.51 : 10,679.16 = 4,201.72 : x
  2. Step 2: Convert to fraction form
    7,738.51/10,679.16 = 4,201.72/x
  3. Step 3: Cross multiply
    7,738.51x = 10,679.16 × 4,201.72
  4. Step 4: Simplify right side
    7,738.51x = 44,870,786.76
  5. Step 5: Solve for x
    x = 44,870,786.76/7,738.51
  6. Step 6: Final answer
    x = 5,798.38

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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.