Home / 3,246.30-4,869.21-1,685.55

Finding the Fourth Proportional to 3,246.30, 4,869.21 and 1,685.55

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Solution

The fourth proportional to 3,246.30, 4,869.21 and 1,685.55 is: 2,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.30 : 4,869.21 = 1,685.55 : x
  2. Step 2: Convert to fraction form
    3,246.30/4,869.21 = 1,685.55/x
  3. Step 3: Cross multiply
    3,246.30x = 4,869.21 × 1,685.55
  4. Step 4: Simplify right side
    3,246.30x = 8,207,296.92
  5. Step 5: Solve for x
    x = 8,207,296.92/3,246.30
  6. Step 6: Final answer
    x = 2,528.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.