Home / 5,111.29-7,666.94-4,193.21

Finding the Fourth Proportional to 5,111.29, 7,666.94 and 4,193.21

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Solution

The fourth proportional to 5,111.29, 7,666.94 and 4,193.21 is: 6,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.29 : 7,666.94 = 4,193.21 : x
  2. Step 2: Convert to fraction form
    5,111.29/7,666.94 = 4,193.21/x
  3. Step 3: Cross multiply
    5,111.29x = 7,666.94 × 4,193.21
  4. Step 4: Simplify right side
    5,111.29x = 32,149,089.48
  5. Step 5: Solve for x
    x = 32,149,089.48/5,111.29
  6. Step 6: Final answer
    x = 6,289.82

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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.