Home / 3,135.48-4,700.76-1,186.60

Finding the Fourth Proportional to 3,135.48, 4,700.76 and 1,186.60

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Solution

The fourth proportional to 3,135.48, 4,700.76 and 1,186.60 is: 1,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.48 : 4,700.76 = 1,186.60 : x
  2. Step 2: Convert to fraction form
    3,135.48/4,700.76 = 1,186.60/x
  3. Step 3: Cross multiply
    3,135.48x = 4,700.76 × 1,186.60
  4. Step 4: Simplify right side
    3,135.48x = 5,577,921.82
  5. Step 5: Solve for x
    x = 5,577,921.82/3,135.48
  6. Step 6: Final answer
    x = 1,778.97

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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.