Home / 3,184.40-4,774.73-1,886.78

Finding the Fourth Proportional to 3,184.40, 4,774.73 and 1,886.78

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Solution

The fourth proportional to 3,184.40, 4,774.73 and 1,886.78 is: 2,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,184.40 : 4,774.73 = 1,886.78 : x
  2. Step 2: Convert to fraction form
    3,184.40/4,774.73 = 1,886.78/x
  3. Step 3: Cross multiply
    3,184.40x = 4,774.73 × 1,886.78
  4. Step 4: Simplify right side
    3,184.40x = 9,008,845.91
  5. Step 5: Solve for x
    x = 9,008,845.91/3,184.40
  6. Step 6: Final answer
    x = 2,829.06

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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.