Home / 5,205.60-7,801.92-2,607.84

Finding the Fourth Proportional to 5,205.60, 7,801.92 and 2,607.84

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Solution

The fourth proportional to 5,205.60, 7,801.92 and 2,607.84 is: 3,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.60 : 7,801.92 = 2,607.84 : x
  2. Step 2: Convert to fraction form
    5,205.60/7,801.92 = 2,607.84/x
  3. Step 3: Cross multiply
    5,205.60x = 7,801.92 × 2,607.84
  4. Step 4: Simplify right side
    5,205.60x = 20,346,159.05
  5. Step 5: Solve for x
    x = 20,346,159.05/5,205.60
  6. Step 6: Final answer
    x = 3,908.51

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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.