Home / 6,439.30-9,645.05-4,347.81

Finding the Fourth Proportional to 6,439.30, 9,645.05 and 4,347.81

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Solution

The fourth proportional to 6,439.30, 9,645.05 and 4,347.81 is: 6,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.30 : 9,645.05 = 4,347.81 : x
  2. Step 2: Convert to fraction form
    6,439.30/9,645.05 = 4,347.81/x
  3. Step 3: Cross multiply
    6,439.30x = 9,645.05 × 4,347.81
  4. Step 4: Simplify right side
    6,439.30x = 41,934,855.71
  5. Step 5: Solve for x
    x = 41,934,855.71/6,439.30
  6. Step 6: Final answer
    x = 6,512.33

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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.