Home / 7,123.70-10,686.72-2,193.34

Finding the Fourth Proportional to 7,123.70, 10,686.72 and 2,193.34

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Solution

The fourth proportional to 7,123.70, 10,686.72 and 2,193.34 is: 3,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.70 : 10,686.72 = 2,193.34 : x
  2. Step 2: Convert to fraction form
    7,123.70/10,686.72 = 2,193.34/x
  3. Step 3: Cross multiply
    7,123.70x = 10,686.72 × 2,193.34
  4. Step 4: Simplify right side
    7,123.70x = 23,439,610.44
  5. Step 5: Solve for x
    x = 23,439,610.44/7,123.70
  6. Step 6: Final answer
    x = 3,290.37

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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.