Home / 6,768.56-10,148.78-2,815.07

Finding the Fourth Proportional to 6,768.56, 10,148.78 and 2,815.07

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Solution

The fourth proportional to 6,768.56, 10,148.78 and 2,815.07 is: 4,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,768.56 : 10,148.78 = 2,815.07 : x
  2. Step 2: Convert to fraction form
    6,768.56/10,148.78 = 2,815.07/x
  3. Step 3: Cross multiply
    6,768.56x = 10,148.78 × 2,815.07
  4. Step 4: Simplify right side
    6,768.56x = 28,569,482.41
  5. Step 5: Solve for x
    x = 28,569,482.41/6,768.56
  6. Step 6: Final answer
    x = 4,220.91

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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.