Home / 6,421.59-9,631.17-2,039.09

Finding the Fourth Proportional to 6,421.59, 9,631.17 and 2,039.09

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Solution

The fourth proportional to 6,421.59, 9,631.17 and 2,039.09 is: 3,058.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.59 : 9,631.17 = 2,039.09 : x
  2. Step 2: Convert to fraction form
    6,421.59/9,631.17 = 2,039.09/x
  3. Step 3: Cross multiply
    6,421.59x = 9,631.17 × 2,039.09
  4. Step 4: Simplify right side
    6,421.59x = 19,638,774.28
  5. Step 5: Solve for x
    x = 19,638,774.28/6,421.59
  6. Step 6: Final answer
    x = 3,058.24

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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.