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Finding the Fourth Proportional to 1,884.17, 2,826.26 and 909.59

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Solution

The fourth proportional to 1,884.17, 2,826.26 and 909.59 is: 1,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.17 : 2,826.26 = 909.59 : x
  2. Step 2: Convert to fraction form
    1,884.17/2,826.26 = 909.59/x
  3. Step 3: Cross multiply
    1,884.17x = 2,826.26 × 909.59
  4. Step 4: Simplify right side
    1,884.17x = 2,570,737.83
  5. Step 5: Solve for x
    x = 2,570,737.83/1,884.17
  6. Step 6: Final answer
    x = 1,364.39

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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.