Home / 4,190.80-5,776.56-3,690.24

Finding the Fourth Proportional to 4,190.80, 5,776.56 and 3,690.24

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Solution

The fourth proportional to 4,190.80, 5,776.56 and 3,690.24 is: 5,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.80 : 5,776.56 = 3,690.24 : x
  2. Step 2: Convert to fraction form
    4,190.80/5,776.56 = 3,690.24/x
  3. Step 3: Cross multiply
    4,190.80x = 5,776.56 × 3,690.24
  4. Step 4: Simplify right side
    4,190.80x = 21,316,892.77
  5. Step 5: Solve for x
    x = 21,316,892.77/4,190.80
  6. Step 6: Final answer
    x = 5,086.59

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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.