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Finding the Fourth Proportional to 1,844.10, 2,766.90 and 804.30

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Solution

The fourth proportional to 1,844.10, 2,766.90 and 804.30 is: 1,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.10 : 2,766.90 = 804.30 : x
  2. Step 2: Convert to fraction form
    1,844.10/2,766.90 = 804.30/x
  3. Step 3: Cross multiply
    1,844.10x = 2,766.90 × 804.30
  4. Step 4: Simplify right side
    1,844.10x = 2,225,417.67
  5. Step 5: Solve for x
    x = 2,225,417.67/1,844.10
  6. Step 6: Final answer
    x = 1,206.78

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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.