Home / 2,856.15-3,934.44-2,435.13

Finding the Fourth Proportional to 2,856.15, 3,934.44 and 2,435.13

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Solution

The fourth proportional to 2,856.15, 3,934.44 and 2,435.13 is: 3,354.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.15 : 3,934.44 = 2,435.13 : x
  2. Step 2: Convert to fraction form
    2,856.15/3,934.44 = 2,435.13/x
  3. Step 3: Cross multiply
    2,856.15x = 3,934.44 × 2,435.13
  4. Step 4: Simplify right side
    2,856.15x = 9,580,872.88
  5. Step 5: Solve for x
    x = 9,580,872.88/2,856.15
  6. Step 6: Final answer
    x = 3,354.47

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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.