Home / 3,190.18-4,402.50-1,931.22

Finding the Fourth Proportional to 3,190.18, 4,402.50 and 1,931.22

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Solution

The fourth proportional to 3,190.18, 4,402.50 and 1,931.22 is: 2,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.18 : 4,402.50 = 1,931.22 : x
  2. Step 2: Convert to fraction form
    3,190.18/4,402.50 = 1,931.22/x
  3. Step 3: Cross multiply
    3,190.18x = 4,402.50 × 1,931.22
  4. Step 4: Simplify right side
    3,190.18x = 8,502,196.05
  5. Step 5: Solve for x
    x = 8,502,196.05/3,190.18
  6. Step 6: Final answer
    x = 2,665.11

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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.