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Finding the Fourth Proportional to 2,389.26, 3,583.48 and 634.28

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Solution

The fourth proportional to 2,389.26, 3,583.48 and 634.28 is: 951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.26 : 3,583.48 = 634.28 : x
  2. Step 2: Convert to fraction form
    2,389.26/3,583.48 = 634.28/x
  3. Step 3: Cross multiply
    2,389.26x = 3,583.48 × 634.28
  4. Step 4: Simplify right side
    2,389.26x = 2,272,929.69
  5. Step 5: Solve for x
    x = 2,272,929.69/2,389.26
  6. Step 6: Final answer
    x = 951.31

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1.5x scale

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.