Home / 7,021.91-9,688.76-4,110.92

Finding the Fourth Proportional to 7,021.91, 9,688.76 and 4,110.92

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Solution

The fourth proportional to 7,021.91, 9,688.76 and 4,110.92 is: 5,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.91 : 9,688.76 = 4,110.92 : x
  2. Step 2: Convert to fraction form
    7,021.91/9,688.76 = 4,110.92/x
  3. Step 3: Cross multiply
    7,021.91x = 9,688.76 × 4,110.92
  4. Step 4: Simplify right side
    7,021.91x = 39,829,723.13
  5. Step 5: Solve for x
    x = 39,829,723.13/7,021.91
  6. Step 6: Final answer
    x = 5,672.21

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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.