Home / 4,920.06-6,789.18-3,031.35

Finding the Fourth Proportional to 4,920.06, 6,789.18 and 3,031.35

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Solution

The fourth proportional to 4,920.06, 6,789.18 and 3,031.35 is: 4,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.06 : 6,789.18 = 3,031.35 : x
  2. Step 2: Convert to fraction form
    4,920.06/6,789.18 = 3,031.35/x
  3. Step 3: Cross multiply
    4,920.06x = 6,789.18 × 3,031.35
  4. Step 4: Simplify right side
    4,920.06x = 20,580,380.79
  5. Step 5: Solve for x
    x = 20,580,380.79/4,920.06
  6. Step 6: Final answer
    x = 4,182.95

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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.