Home / 5,379.55-7,423.54-3,141.63

Finding the Fourth Proportional to 5,379.55, 7,423.54 and 3,141.63

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Solution

The fourth proportional to 5,379.55, 7,423.54 and 3,141.63 is: 4,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.55 : 7,423.54 = 3,141.63 : x
  2. Step 2: Convert to fraction form
    5,379.55/7,423.54 = 3,141.63/x
  3. Step 3: Cross multiply
    5,379.55x = 7,423.54 × 3,141.63
  4. Step 4: Simplify right side
    5,379.55x = 23,322,008.12
  5. Step 5: Solve for x
    x = 23,322,008.12/5,379.55
  6. Step 6: Final answer
    x = 4,335.31

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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.