Home / 3,298.39-4,551.78-1,806.40

Finding the Fourth Proportional to 3,298.39, 4,551.78 and 1,806.40

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Solution

The fourth proportional to 3,298.39, 4,551.78 and 1,806.40 is: 2,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.39 : 4,551.78 = 1,806.40 : x
  2. Step 2: Convert to fraction form
    3,298.39/4,551.78 = 1,806.40/x
  3. Step 3: Cross multiply
    3,298.39x = 4,551.78 × 1,806.40
  4. Step 4: Simplify right side
    3,298.39x = 8,222,335.39
  5. Step 5: Solve for x
    x = 8,222,335.39/3,298.39
  6. Step 6: Final answer
    x = 2,492.83

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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.