Home / 5,208.20-7,815.35-1,923.58

Finding the Fourth Proportional to 5,208.20, 7,815.35 and 1,923.58

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Solution

The fourth proportional to 5,208.20, 7,815.35 and 1,923.58 is: 2,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.20 : 7,815.35 = 1,923.58 : x
  2. Step 2: Convert to fraction form
    5,208.20/7,815.35 = 1,923.58/x
  3. Step 3: Cross multiply
    5,208.20x = 7,815.35 × 1,923.58
  4. Step 4: Simplify right side
    5,208.20x = 15,033,450.95
  5. Step 5: Solve for x
    x = 15,033,450.95/5,208.20
  6. Step 6: Final answer
    x = 2,886.50

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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.