Home / 3,190.70-4,403.28-1,774.79

Finding the Fourth Proportional to 3,190.70, 4,403.28 and 1,774.79

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Solution

The fourth proportional to 3,190.70, 4,403.28 and 1,774.79 is: 2,449.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.70 : 4,403.28 = 1,774.79 : x
  2. Step 2: Convert to fraction form
    3,190.70/4,403.28 = 1,774.79/x
  3. Step 3: Cross multiply
    3,190.70x = 4,403.28 × 1,774.79
  4. Step 4: Simplify right side
    3,190.70x = 7,814,866.42
  5. Step 5: Solve for x
    x = 7,814,866.42/3,190.70
  6. Step 6: Final answer
    x = 2,449.26

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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.