Home / 3,137.83-4,330.03-1,811.45

Finding the Fourth Proportional to 3,137.83, 4,330.03 and 1,811.45

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Solution

The fourth proportional to 3,137.83, 4,330.03 and 1,811.45 is: 2,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.83 : 4,330.03 = 1,811.45 : x
  2. Step 2: Convert to fraction form
    3,137.83/4,330.03 = 1,811.45/x
  3. Step 3: Cross multiply
    3,137.83x = 4,330.03 × 1,811.45
  4. Step 4: Simplify right side
    3,137.83x = 7,843,623.79
  5. Step 5: Solve for x
    x = 7,843,623.79/3,137.83
  6. Step 6: Final answer
    x = 2,499.70

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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.