Home / 3,187.20-4,774.26-1,885.50

Finding the Fourth Proportional to 3,187.20, 4,774.26 and 1,885.50

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Solution

The fourth proportional to 3,187.20, 4,774.26 and 1,885.50 is: 2,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.20 : 4,774.26 = 1,885.50 : x
  2. Step 2: Convert to fraction form
    3,187.20/4,774.26 = 1,885.50/x
  3. Step 3: Cross multiply
    3,187.20x = 4,774.26 × 1,885.50
  4. Step 4: Simplify right side
    3,187.20x = 9,001,867.23
  5. Step 5: Solve for x
    x = 9,001,867.23/3,187.20
  6. Step 6: Final answer
    x = 2,824.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.