Home / 5,214.60-7,821.50-2,440.55

Finding the Fourth Proportional to 5,214.60, 7,821.50 and 2,440.55

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Solution

The fourth proportional to 5,214.60, 7,821.50 and 2,440.55 is: 3,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.60 : 7,821.50 = 2,440.55 : x
  2. Step 2: Convert to fraction form
    5,214.60/7,821.50 = 2,440.55/x
  3. Step 3: Cross multiply
    5,214.60x = 7,821.50 × 2,440.55
  4. Step 4: Simplify right side
    5,214.60x = 19,088,769.18
  5. Step 5: Solve for x
    x = 19,088,769.18/5,214.60
  6. Step 6: Final answer
    x = 3,660.64

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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.