Home / 1,951.16-2,689.08-1,619.60

Finding the Fourth Proportional to 1,951.16, 2,689.08 and 1,619.60

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Solution

The fourth proportional to 1,951.16, 2,689.08 and 1,619.60 is: 2,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.16 : 2,689.08 = 1,619.60 : x
  2. Step 2: Convert to fraction form
    1,951.16/2,689.08 = 1,619.60/x
  3. Step 3: Cross multiply
    1,951.16x = 2,689.08 × 1,619.60
  4. Step 4: Simplify right side
    1,951.16x = 4,355,233.97
  5. Step 5: Solve for x
    x = 4,355,233.97/1,951.16
  6. Step 6: Final answer
    x = 2,232.13

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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.