Home / 5,425.66-8,138.77-1,530.37

Finding the Fourth Proportional to 5,425.66, 8,138.77 and 1,530.37

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Solution

The fourth proportional to 5,425.66, 8,138.77 and 1,530.37 is: 2,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.66 : 8,138.77 = 1,530.37 : x
  2. Step 2: Convert to fraction form
    5,425.66/8,138.77 = 1,530.37/x
  3. Step 3: Cross multiply
    5,425.66x = 8,138.77 × 1,530.37
  4. Step 4: Simplify right side
    5,425.66x = 12,455,301.45
  5. Step 5: Solve for x
    x = 12,455,301.45/5,425.66
  6. Step 6: Final answer
    x = 2,295.63

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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.