Home / 1,618.26-2,233.35-1,152.78

Finding the Fourth Proportional to 1,618.26, 2,233.35 and 1,152.78

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Solution

The fourth proportional to 1,618.26, 2,233.35 and 1,152.78 is: 1,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.26 : 2,233.35 = 1,152.78 : x
  2. Step 2: Convert to fraction form
    1,618.26/2,233.35 = 1,152.78/x
  3. Step 3: Cross multiply
    1,618.26x = 2,233.35 × 1,152.78
  4. Step 4: Simplify right side
    1,618.26x = 2,574,561.21
  5. Step 5: Solve for x
    x = 2,574,561.21/1,618.26
  6. Step 6: Final answer
    x = 1,590.94

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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.