Home / 6,421.72-9,632.48-2,039.11

Finding the Fourth Proportional to 6,421.72, 9,632.48 and 2,039.11

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Solution

The fourth proportional to 6,421.72, 9,632.48 and 2,039.11 is: 3,058.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.72 : 9,632.48 = 2,039.11 : x
  2. Step 2: Convert to fraction form
    6,421.72/9,632.48 = 2,039.11/x
  3. Step 3: Cross multiply
    6,421.72x = 9,632.48 × 2,039.11
  4. Step 4: Simplify right side
    6,421.72x = 19,641,688.14
  5. Step 5: Solve for x
    x = 19,641,688.14/6,421.72
  6. Step 6: Final answer
    x = 3,058.63

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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.