Home / 2,976.18-4,104.95-2,137.75

Finding the Fourth Proportional to 2,976.18, 4,104.95 and 2,137.75

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Solution

The fourth proportional to 2,976.18, 4,104.95 and 2,137.75 is: 2,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.18 : 4,104.95 = 2,137.75 : x
  2. Step 2: Convert to fraction form
    2,976.18/4,104.95 = 2,137.75/x
  3. Step 3: Cross multiply
    2,976.18x = 4,104.95 × 2,137.75
  4. Step 4: Simplify right side
    2,976.18x = 8,775,335.91
  5. Step 5: Solve for x
    x = 8,775,335.91/2,976.18
  6. Step 6: Final answer
    x = 2,948.52

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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.