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Finding the Fourth Proportional to 1,482.66, 2,222.27 and 557.62

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Solution

The fourth proportional to 1,482.66, 2,222.27 and 557.62 is: 835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.66 : 2,222.27 = 557.62 : x
  2. Step 2: Convert to fraction form
    1,482.66/2,222.27 = 557.62/x
  3. Step 3: Cross multiply
    1,482.66x = 2,222.27 × 557.62
  4. Step 4: Simplify right side
    1,482.66x = 1,239,182.20
  5. Step 5: Solve for x
    x = 1,239,182.20/1,482.66
  6. Step 6: Final answer
    x = 835.78

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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.