Home / 2,934.60-4,403.72-1,961.40

Finding the Fourth Proportional to 2,934.60, 4,403.72 and 1,961.40

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Solution

The fourth proportional to 2,934.60, 4,403.72 and 1,961.40 is: 2,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,934.60 : 4,403.72 = 1,961.40 : x
  2. Step 2: Convert to fraction form
    2,934.60/4,403.72 = 1,961.40/x
  3. Step 3: Cross multiply
    2,934.60x = 4,403.72 × 1,961.40
  4. Step 4: Simplify right side
    2,934.60x = 8,637,456.41
  5. Step 5: Solve for x
    x = 8,637,456.41/2,934.60
  6. Step 6: Final answer
    x = 2,943.32

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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.