Home / 1,137.26-1,569.32-633.10

Finding the Fourth Proportional to 1,137.26, 1,569.32 and 633.10

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Solution

The fourth proportional to 1,137.26, 1,569.32 and 633.10 is: 873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137.26 : 1,569.32 = 633.10 : x
  2. Step 2: Convert to fraction form
    1,137.26/1,569.32 = 633.10/x
  3. Step 3: Cross multiply
    1,137.26x = 1,569.32 × 633.10
  4. Step 4: Simplify right side
    1,137.26x = 993,536.49
  5. Step 5: Solve for x
    x = 993,536.49/1,137.26
  6. Step 6: Final answer
    x = 873.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.