Home / 2,191.19-3,285.65-804.17

Finding the Fourth Proportional to 2,191.19, 3,285.65 and 804.17

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Solution

The fourth proportional to 2,191.19, 3,285.65 and 804.17 is: 1,205.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.19 : 3,285.65 = 804.17 : x
  2. Step 2: Convert to fraction form
    2,191.19/3,285.65 = 804.17/x
  3. Step 3: Cross multiply
    2,191.19x = 3,285.65 × 804.17
  4. Step 4: Simplify right side
    2,191.19x = 2,642,200.71
  5. Step 5: Solve for x
    x = 2,642,200.71/2,191.19
  6. Step 6: Final answer
    x = 1,205.83

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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.