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Finding the Fourth Proportional to 1,883.54, 2,825.72 and 585

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Solution

The fourth proportional to 1,883.54, 2,825.72 and 585 is: 877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.54 : 2,825.72 = 585 : x
  2. Step 2: Convert to fraction form
    1,883.54/2,825.72 = 585/x
  3. Step 3: Cross multiply
    1,883.54x = 2,825.72 × 585
  4. Step 4: Simplify right side
    1,883.54x = 1,653,043.28
  5. Step 5: Solve for x
    x = 1,653,043.28/1,883.54
  6. Step 6: Final answer
    x = 877.63

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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.