Home / 5,558.80-8,338.20-2,639.56

Finding the Fourth Proportional to 5,558.80, 8,338.20 and 2,639.56

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Solution

The fourth proportional to 5,558.80, 8,338.20 and 2,639.56 is: 3,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.80 : 8,338.20 = 2,639.56 : x
  2. Step 2: Convert to fraction form
    5,558.80/8,338.20 = 2,639.56/x
  3. Step 3: Cross multiply
    5,558.80x = 8,338.20 × 2,639.56
  4. Step 4: Simplify right side
    5,558.80x = 22,009,179.19
  5. Step 5: Solve for x
    x = 22,009,179.19/5,558.80
  6. Step 6: Final answer
    x = 3,959.34

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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.