Home / 3,190.13-4,402.46-1,931.41

Finding the Fourth Proportional to 3,190.13, 4,402.46 and 1,931.41

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Solution

The fourth proportional to 3,190.13, 4,402.46 and 1,931.41 is: 2,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.13 : 4,402.46 = 1,931.41 : x
  2. Step 2: Convert to fraction form
    3,190.13/4,402.46 = 1,931.41/x
  3. Step 3: Cross multiply
    3,190.13x = 4,402.46 × 1,931.41
  4. Step 4: Simplify right side
    3,190.13x = 8,502,949.09
  5. Step 5: Solve for x
    x = 8,502,949.09/3,190.13
  6. Step 6: Final answer
    x = 2,665.40

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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.