Home / 4,818.20-6,646.56-3,246.80

Finding the Fourth Proportional to 4,818.20, 6,646.56 and 3,246.80

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Solution

The fourth proportional to 4,818.20, 6,646.56 and 3,246.80 is: 4,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.20 : 6,646.56 = 3,246.80 : x
  2. Step 2: Convert to fraction form
    4,818.20/6,646.56 = 3,246.80/x
  3. Step 3: Cross multiply
    4,818.20x = 6,646.56 × 3,246.80
  4. Step 4: Simplify right side
    4,818.20x = 21,580,051.01
  5. Step 5: Solve for x
    x = 21,580,051.01/4,818.20
  6. Step 6: Final answer
    x = 4,478.86

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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.