Home / 3,206.12-4,809.88-1,820.11

Finding the Fourth Proportional to 3,206.12, 4,809.88 and 1,820.11

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Solution

The fourth proportional to 3,206.12, 4,809.88 and 1,820.11 is: 2,730.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.12 : 4,809.88 = 1,820.11 : x
  2. Step 2: Convert to fraction form
    3,206.12/4,809.88 = 1,820.11/x
  3. Step 3: Cross multiply
    3,206.12x = 4,809.88 × 1,820.11
  4. Step 4: Simplify right side
    3,206.12x = 8,754,510.69
  5. Step 5: Solve for x
    x = 8,754,510.69/3,206.12
  6. Step 6: Final answer
    x = 2,730.56

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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.