Home / 3,139.84-4,710.54-2,217.21

Finding the Fourth Proportional to 3,139.84, 4,710.54 and 2,217.21

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Solution

The fourth proportional to 3,139.84, 4,710.54 and 2,217.21 is: 3,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.84 : 4,710.54 = 2,217.21 : x
  2. Step 2: Convert to fraction form
    3,139.84/4,710.54 = 2,217.21/x
  3. Step 3: Cross multiply
    3,139.84x = 4,710.54 × 2,217.21
  4. Step 4: Simplify right side
    3,139.84x = 10,444,221.75
  5. Step 5: Solve for x
    x = 10,444,221.75/3,139.84
  6. Step 6: Final answer
    x = 3,326.35

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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.