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Finding the Fourth Proportional to 1,153.79, 1,730.94 and 373.84

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Solution

The fourth proportional to 1,153.79, 1,730.94 and 373.84 is: 560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.79 : 1,730.94 = 373.84 : x
  2. Step 2: Convert to fraction form
    1,153.79/1,730.94 = 373.84/x
  3. Step 3: Cross multiply
    1,153.79x = 1,730.94 × 373.84
  4. Step 4: Simplify right side
    1,153.79x = 647,094.61
  5. Step 5: Solve for x
    x = 647,094.61/1,153.79
  6. Step 6: Final answer
    x = 560.84

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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.