Home / 4,294.08-6,439.89-1,661.40

Finding the Fourth Proportional to 4,294.08, 6,439.89 and 1,661.40

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Solution

The fourth proportional to 4,294.08, 6,439.89 and 1,661.40 is: 2,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,294.08 : 6,439.89 = 1,661.40 : x
  2. Step 2: Convert to fraction form
    4,294.08/6,439.89 = 1,661.40/x
  3. Step 3: Cross multiply
    4,294.08x = 6,439.89 × 1,661.40
  4. Step 4: Simplify right side
    4,294.08x = 10,699,233.25
  5. Step 5: Solve for x
    x = 10,699,233.25/4,294.08
  6. Step 6: Final answer
    x = 2,491.62

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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.