Home / 3,113.52-4,298.76-1,936.40

Finding the Fourth Proportional to 3,113.52, 4,298.76 and 1,936.40

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Solution

The fourth proportional to 3,113.52, 4,298.76 and 1,936.40 is: 2,673.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.52 : 4,298.76 = 1,936.40 : x
  2. Step 2: Convert to fraction form
    3,113.52/4,298.76 = 1,936.40/x
  3. Step 3: Cross multiply
    3,113.52x = 4,298.76 × 1,936.40
  4. Step 4: Simplify right side
    3,113.52x = 8,324,118.86
  5. Step 5: Solve for x
    x = 8,324,118.86/3,113.52
  6. Step 6: Final answer
    x = 2,673.54

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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.