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Finding the Fourth Proportional to 1,153.94, 1,730.64 and 373.92

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Solution

The fourth proportional to 1,153.94, 1,730.64 and 373.92 is: 560.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.94 : 1,730.64 = 373.92 : x
  2. Step 2: Convert to fraction form
    1,153.94/1,730.64 = 373.92/x
  3. Step 3: Cross multiply
    1,153.94x = 1,730.64 × 373.92
  4. Step 4: Simplify right side
    1,153.94x = 647,120.91
  5. Step 5: Solve for x
    x = 647,120.91/1,153.94
  6. Step 6: Final answer
    x = 560.79

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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.