Home / 4,378.71-6,564.73-2,188.98

Finding the Fourth Proportional to 4,378.71, 6,564.73 and 2,188.98

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Solution

The fourth proportional to 4,378.71, 6,564.73 and 2,188.98 is: 3,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.71 : 6,564.73 = 2,188.98 : x
  2. Step 2: Convert to fraction form
    4,378.71/6,564.73 = 2,188.98/x
  3. Step 3: Cross multiply
    4,378.71x = 6,564.73 × 2,188.98
  4. Step 4: Simplify right side
    4,378.71x = 14,370,062.68
  5. Step 5: Solve for x
    x = 14,370,062.68/4,378.71
  6. Step 6: Final answer
    x = 3,281.80

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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.