Home / 6,971.61-10,455.75-4,161.21

Finding the Fourth Proportional to 6,971.61, 10,455.75 and 4,161.21

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Solution

The fourth proportional to 6,971.61, 10,455.75 and 4,161.21 is: 6,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.61 : 10,455.75 = 4,161.21 : x
  2. Step 2: Convert to fraction form
    6,971.61/10,455.75 = 4,161.21/x
  3. Step 3: Cross multiply
    6,971.61x = 10,455.75 × 4,161.21
  4. Step 4: Simplify right side
    6,971.61x = 43,508,571.46
  5. Step 5: Solve for x
    x = 43,508,571.46/6,971.61
  6. Step 6: Final answer
    x = 6,240.82

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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.