Home / 5,425.37-8,139.11-2,305.35

Finding the Fourth Proportional to 5,425.37, 8,139.11 and 2,305.35

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Solution

The fourth proportional to 5,425.37, 8,139.11 and 2,305.35 is: 3,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.37 : 8,139.11 = 2,305.35 : x
  2. Step 2: Convert to fraction form
    5,425.37/8,139.11 = 2,305.35/x
  3. Step 3: Cross multiply
    5,425.37x = 8,139.11 × 2,305.35
  4. Step 4: Simplify right side
    5,425.37x = 18,763,497.24
  5. Step 5: Solve for x
    x = 18,763,497.24/5,425.37
  6. Step 6: Final answer
    x = 3,458.47

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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.