Home / 3,556.70-4,909.12-2,160.62

Finding the Fourth Proportional to 3,556.70, 4,909.12 and 2,160.62

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Solution

The fourth proportional to 3,556.70, 4,909.12 and 2,160.62 is: 2,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.70 : 4,909.12 = 2,160.62 : x
  2. Step 2: Convert to fraction form
    3,556.70/4,909.12 = 2,160.62/x
  3. Step 3: Cross multiply
    3,556.70x = 4,909.12 × 2,160.62
  4. Step 4: Simplify right side
    3,556.70x = 10,606,718.31
  5. Step 5: Solve for x
    x = 10,606,718.31/3,556.70
  6. Step 6: Final answer
    x = 2,982.18

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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.