Home / 3,246.76-4,873.60-1,398.78

Finding the Fourth Proportional to 3,246.76, 4,873.60 and 1,398.78

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Solution

The fourth proportional to 3,246.76, 4,873.60 and 1,398.78 is: 2,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.76 : 4,873.60 = 1,398.78 : x
  2. Step 2: Convert to fraction form
    3,246.76/4,873.60 = 1,398.78/x
  3. Step 3: Cross multiply
    3,246.76x = 4,873.60 × 1,398.78
  4. Step 4: Simplify right side
    3,246.76x = 6,817,094.21
  5. Step 5: Solve for x
    x = 6,817,094.21/3,246.76
  6. Step 6: Final answer
    x = 2,099.66

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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.