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Finding the Fourth Proportional to 1,235.39, 1,704.55 and 737.93

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Solution

The fourth proportional to 1,235.39, 1,704.55 and 737.93 is: 1,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.39 : 1,704.55 = 737.93 : x
  2. Step 2: Convert to fraction form
    1,235.39/1,704.55 = 737.93/x
  3. Step 3: Cross multiply
    1,235.39x = 1,704.55 × 737.93
  4. Step 4: Simplify right side
    1,235.39x = 1,257,838.58
  5. Step 5: Solve for x
    x = 1,257,838.58/1,235.39
  6. Step 6: Final answer
    x = 1,018.17

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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.