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Finding the Fourth Proportional to 1,602.60, 2,211.26 and 1,012.83

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Solution

The fourth proportional to 1,602.60, 2,211.26 and 1,012.83 is: 1,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.60 : 2,211.26 = 1,012.83 : x
  2. Step 2: Convert to fraction form
    1,602.60/2,211.26 = 1,012.83/x
  3. Step 3: Cross multiply
    1,602.60x = 2,211.26 × 1,012.83
  4. Step 4: Simplify right side
    1,602.60x = 2,239,630.47
  5. Step 5: Solve for x
    x = 2,239,630.47/1,602.60
  6. Step 6: Final answer
    x = 1,397.50

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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.