Home / 3,417.80-4,716.76-2,091.12

Finding the Fourth Proportional to 3,417.80, 4,716.76 and 2,091.12

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Solution

The fourth proportional to 3,417.80, 4,716.76 and 2,091.12 is: 2,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.80 : 4,716.76 = 2,091.12 : x
  2. Step 2: Convert to fraction form
    3,417.80/4,716.76 = 2,091.12/x
  3. Step 3: Cross multiply
    3,417.80x = 4,716.76 × 2,091.12
  4. Step 4: Simplify right side
    3,417.80x = 9,863,311.17
  5. Step 5: Solve for x
    x = 9,863,311.17/3,417.80
  6. Step 6: Final answer
    x = 2,885.87

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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.