Home / 5,150.22-7,725.46-1,640.17

Finding the Fourth Proportional to 5,150.22, 7,725.46 and 1,640.17

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Solution

The fourth proportional to 5,150.22, 7,725.46 and 1,640.17 is: 2,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.22 : 7,725.46 = 1,640.17 : x
  2. Step 2: Convert to fraction form
    5,150.22/7,725.46 = 1,640.17/x
  3. Step 3: Cross multiply
    5,150.22x = 7,725.46 × 1,640.17
  4. Step 4: Simplify right side
    5,150.22x = 12,671,032.90
  5. Step 5: Solve for x
    x = 12,671,032.90/5,150.22
  6. Step 6: Final answer
    x = 2,460.29

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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.