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Finding the Fourth Proportional to 1,350.40, 1,852.55 and 1,266.58

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Solution

The fourth proportional to 1,350.40, 1,852.55 and 1,266.58 is: 1,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.40 : 1,852.55 = 1,266.58 : x
  2. Step 2: Convert to fraction form
    1,350.40/1,852.55 = 1,266.58/x
  3. Step 3: Cross multiply
    1,350.40x = 1,852.55 × 1,266.58
  4. Step 4: Simplify right side
    1,350.40x = 2,346,402.78
  5. Step 5: Solve for x
    x = 2,346,402.78/1,350.40
  6. Step 6: Final answer
    x = 1,737.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.