Home / 3,190.40-4,403.02-1,774.56

Finding the Fourth Proportional to 3,190.40, 4,403.02 and 1,774.56

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Solution

The fourth proportional to 3,190.40, 4,403.02 and 1,774.56 is: 2,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.40 : 4,403.02 = 1,774.56 : x
  2. Step 2: Convert to fraction form
    3,190.40/4,403.02 = 1,774.56/x
  3. Step 3: Cross multiply
    3,190.40x = 4,403.02 × 1,774.56
  4. Step 4: Simplify right side
    3,190.40x = 7,813,423.17
  5. Step 5: Solve for x
    x = 7,813,423.17/3,190.40
  6. Step 6: Final answer
    x = 2,449.04

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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.