Home / 7,190.76-10,787.50-2,807.94

Finding the Fourth Proportional to 7,190.76, 10,787.50 and 2,807.94

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Solution

The fourth proportional to 7,190.76, 10,787.50 and 2,807.94 is: 4,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.76 : 10,787.50 = 2,807.94 : x
  2. Step 2: Convert to fraction form
    7,190.76/10,787.50 = 2,807.94/x
  3. Step 3: Cross multiply
    7,190.76x = 10,787.50 × 2,807.94
  4. Step 4: Simplify right side
    7,190.76x = 30,290,652.75
  5. Step 5: Solve for x
    x = 30,290,652.75/7,190.76
  6. Step 6: Final answer
    x = 4,212.44

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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.