Home / 4,809.12-6,635.88-2,818.92

Finding the Fourth Proportional to 4,809.12, 6,635.88 and 2,818.92

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Solution

The fourth proportional to 4,809.12, 6,635.88 and 2,818.92 is: 3,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.12 : 6,635.88 = 2,818.92 : x
  2. Step 2: Convert to fraction form
    4,809.12/6,635.88 = 2,818.92/x
  3. Step 3: Cross multiply
    4,809.12x = 6,635.88 × 2,818.92
  4. Step 4: Simplify right side
    4,809.12x = 18,706,014.85
  5. Step 5: Solve for x
    x = 18,706,014.85/4,809.12
  6. Step 6: Final answer
    x = 3,889.70

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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.