Home / 3,318.47-4,980.78-1,676.17

Finding the Fourth Proportional to 3,318.47, 4,980.78 and 1,676.17

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Solution

The fourth proportional to 3,318.47, 4,980.78 and 1,676.17 is: 2,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.47 : 4,980.78 = 1,676.17 : x
  2. Step 2: Convert to fraction form
    3,318.47/4,980.78 = 1,676.17/x
  3. Step 3: Cross multiply
    3,318.47x = 4,980.78 × 1,676.17
  4. Step 4: Simplify right side
    3,318.47x = 8,348,646.52
  5. Step 5: Solve for x
    x = 8,348,646.52/3,318.47
  6. Step 6: Final answer
    x = 2,515.81

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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.