Home / 7,123.87-10,685.86-2,193.55

Finding the Fourth Proportional to 7,123.87, 10,685.86 and 2,193.55

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Solution

The fourth proportional to 7,123.87, 10,685.86 and 2,193.55 is: 3,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.87 : 10,685.86 = 2,193.55 : x
  2. Step 2: Convert to fraction form
    7,123.87/10,685.86 = 2,193.55/x
  3. Step 3: Cross multiply
    7,123.87x = 10,685.86 × 2,193.55
  4. Step 4: Simplify right side
    7,123.87x = 23,439,936.00
  5. Step 5: Solve for x
    x = 23,439,936.00/7,123.87
  6. Step 6: Final answer
    x = 3,290.34

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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.