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Finding the Fourth Proportional to 1,599.83, 2,206.90 and 1,002.20

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Solution

The fourth proportional to 1,599.83, 2,206.90 and 1,002.20 is: 1,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.83 : 2,206.90 = 1,002.20 : x
  2. Step 2: Convert to fraction form
    1,599.83/2,206.90 = 1,002.20/x
  3. Step 3: Cross multiply
    1,599.83x = 2,206.90 × 1,002.20
  4. Step 4: Simplify right side
    1,599.83x = 2,211,754.22
  5. Step 5: Solve for x
    x = 2,211,754.22/1,599.83
  6. Step 6: Final answer
    x = 1,382.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.