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Finding the Fourth Proportional to 1,200.46, 1,800.70 and 1,037.66

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Solution

The fourth proportional to 1,200.46, 1,800.70 and 1,037.66 is: 1,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200.46 : 1,800.70 = 1,037.66 : x
  2. Step 2: Convert to fraction form
    1,200.46/1,800.70 = 1,037.66/x
  3. Step 3: Cross multiply
    1,200.46x = 1,800.70 × 1,037.66
  4. Step 4: Simplify right side
    1,200.46x = 1,868,514.36
  5. Step 5: Solve for x
    x = 1,868,514.36/1,200.46
  6. Step 6: Final answer
    x = 1,556.50

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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.