Home / 3,318.15-4,977.80-1,652.39

Finding the Fourth Proportional to 3,318.15, 4,977.80 and 1,652.39

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Solution

The fourth proportional to 3,318.15, 4,977.80 and 1,652.39 is: 2,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.15 : 4,977.80 = 1,652.39 : x
  2. Step 2: Convert to fraction form
    3,318.15/4,977.80 = 1,652.39/x
  3. Step 3: Cross multiply
    3,318.15x = 4,977.80 × 1,652.39
  4. Step 4: Simplify right side
    3,318.15x = 8,225,266.94
  5. Step 5: Solve for x
    x = 8,225,266.94/3,318.15
  6. Step 6: Final answer
    x = 2,478.87

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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.