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Finding the Fourth Proportional to 1,883.70, 2,825.91 and 585.18

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Solution

The fourth proportional to 1,883.70, 2,825.91 and 585.18 is: 877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.70 : 2,825.91 = 585.18 : x
  2. Step 2: Convert to fraction form
    1,883.70/2,825.91 = 585.18/x
  3. Step 3: Cross multiply
    1,883.70x = 2,825.91 × 585.18
  4. Step 4: Simplify right side
    1,883.70x = 1,653,666.01
  5. Step 5: Solve for x
    x = 1,653,666.01/1,883.70
  6. Step 6: Final answer
    x = 877.88

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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.