Home / 7,123.89-10,686.85-2,193.93

Finding the Fourth Proportional to 7,123.89, 10,686.85 and 2,193.93

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Solution

The fourth proportional to 7,123.89, 10,686.85 and 2,193.93 is: 3,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.89 : 10,686.85 = 2,193.93 : x
  2. Step 2: Convert to fraction form
    7,123.89/10,686.85 = 2,193.93/x
  3. Step 3: Cross multiply
    7,123.89x = 10,686.85 × 2,193.93
  4. Step 4: Simplify right side
    7,123.89x = 23,446,189.85
  5. Step 5: Solve for x
    x = 23,446,189.85/7,123.89
  6. Step 6: Final answer
    x = 3,291.21

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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.