Home / 3,190.32-4,403.16-2,666.16

Finding the Fourth Proportional to 3,190.32, 4,403.16 and 2,666.16

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Solution

The fourth proportional to 3,190.32, 4,403.16 and 2,666.16 is: 3,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.32 : 4,403.16 = 2,666.16 : x
  2. Step 2: Convert to fraction form
    3,190.32/4,403.16 = 2,666.16/x
  3. Step 3: Cross multiply
    3,190.32x = 4,403.16 × 2,666.16
  4. Step 4: Simplify right side
    3,190.32x = 11,739,529.07
  5. Step 5: Solve for x
    x = 11,739,529.07/3,190.32
  6. Step 6: Final answer
    x = 3,679.73

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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.