Home / 7,821.35-10,793.40-4,284.48

Finding the Fourth Proportional to 7,821.35, 10,793.40 and 4,284.48

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Solution

The fourth proportional to 7,821.35, 10,793.40 and 4,284.48 is: 5,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.35 : 10,793.40 = 4,284.48 : x
  2. Step 2: Convert to fraction form
    7,821.35/10,793.40 = 4,284.48/x
  3. Step 3: Cross multiply
    7,821.35x = 10,793.40 × 4,284.48
  4. Step 4: Simplify right side
    7,821.35x = 46,244,106.43
  5. Step 5: Solve for x
    x = 46,244,106.43/7,821.35
  6. Step 6: Final answer
    x = 5,912.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.