Home / 5,321.23-7,345.92-4,123.57

Finding the Fourth Proportional to 5,321.23, 7,345.92 and 4,123.57

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Solution

The fourth proportional to 5,321.23, 7,345.92 and 4,123.57 is: 5,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.23 : 7,345.92 = 4,123.57 : x
  2. Step 2: Convert to fraction form
    5,321.23/7,345.92 = 4,123.57/x
  3. Step 3: Cross multiply
    5,321.23x = 7,345.92 × 4,123.57
  4. Step 4: Simplify right side
    5,321.23x = 30,291,415.33
  5. Step 5: Solve for x
    x = 30,291,415.33/5,321.23
  6. Step 6: Final answer
    x = 5,692.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.