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Finding the Fourth Proportional to 1,342.50, 1,852.22 and 752.93

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Solution

The fourth proportional to 1,342.50, 1,852.22 and 752.93 is: 1,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.50 : 1,852.22 = 752.93 : x
  2. Step 2: Convert to fraction form
    1,342.50/1,852.22 = 752.93/x
  3. Step 3: Cross multiply
    1,342.50x = 1,852.22 × 752.93
  4. Step 4: Simplify right side
    1,342.50x = 1,394,578.98
  5. Step 5: Solve for x
    x = 1,394,578.98/1,342.50
  6. Step 6: Final answer
    x = 1,038.79

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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.