Home / 4,378.28-6,564.06-2,188.55

Finding the Fourth Proportional to 4,378.28, 6,564.06 and 2,188.55

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Solution

The fourth proportional to 4,378.28, 6,564.06 and 2,188.55 is: 3,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.28 : 6,564.06 = 2,188.55 : x
  2. Step 2: Convert to fraction form
    4,378.28/6,564.06 = 2,188.55/x
  3. Step 3: Cross multiply
    4,378.28x = 6,564.06 × 2,188.55
  4. Step 4: Simplify right side
    4,378.28x = 14,365,789.92
  5. Step 5: Solve for x
    x = 14,365,789.92/4,378.28
  6. Step 6: Final answer
    x = 3,281.15

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1.5x scale

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.