Home / 3,610.80-4,982.40-2,017.38

Finding the Fourth Proportional to 3,610.80, 4,982.40 and 2,017.38

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Solution

The fourth proportional to 3,610.80, 4,982.40 and 2,017.38 is: 2,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.80 : 4,982.40 = 2,017.38 : x
  2. Step 2: Convert to fraction form
    3,610.80/4,982.40 = 2,017.38/x
  3. Step 3: Cross multiply
    3,610.80x = 4,982.40 × 2,017.38
  4. Step 4: Simplify right side
    3,610.80x = 10,051,394.11
  5. Step 5: Solve for x
    x = 10,051,394.11/3,610.80
  6. Step 6: Final answer
    x = 2,783.70

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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.