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Finding the Fourth Proportional to 1,553.00, 2,328.75 and 730.58

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Solution

The fourth proportional to 1,553.00, 2,328.75 and 730.58 is: 1,095.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.00 : 2,328.75 = 730.58 : x
  2. Step 2: Convert to fraction form
    1,553.00/2,328.75 = 730.58/x
  3. Step 3: Cross multiply
    1,553.00x = 2,328.75 × 730.58
  4. Step 4: Simplify right side
    1,553.00x = 1,701,326.53
  5. Step 5: Solve for x
    x = 1,701,326.53/1,553.00
  6. Step 6: Final answer
    x = 1,095.51

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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.