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Finding the Fourth Proportional to 1,785.12, 2,677.22 and 535.46

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Solution

The fourth proportional to 1,785.12, 2,677.22 and 535.46 is: 803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.12 : 2,677.22 = 535.46 : x
  2. Step 2: Convert to fraction form
    1,785.12/2,677.22 = 535.46/x
  3. Step 3: Cross multiply
    1,785.12x = 2,677.22 × 535.46
  4. Step 4: Simplify right side
    1,785.12x = 1,433,544.22
  5. Step 5: Solve for x
    x = 1,433,544.22/1,785.12
  6. Step 6: Final answer
    x = 803.05

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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.