Home / 3,137.48-4,329.66-1,811.18

Finding the Fourth Proportional to 3,137.48, 4,329.66 and 1,811.18

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Solution

The fourth proportional to 3,137.48, 4,329.66 and 1,811.18 is: 2,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.48 : 4,329.66 = 1,811.18 : x
  2. Step 2: Convert to fraction form
    3,137.48/4,329.66 = 1,811.18/x
  3. Step 3: Cross multiply
    3,137.48x = 4,329.66 × 1,811.18
  4. Step 4: Simplify right side
    3,137.48x = 7,841,793.60
  5. Step 5: Solve for x
    x = 7,841,793.60/3,137.48
  6. Step 6: Final answer
    x = 2,499.39

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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.