Home / 3,097.83-4,272.63-2,153.61

Finding the Fourth Proportional to 3,097.83, 4,272.63 and 2,153.61

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Solution

The fourth proportional to 3,097.83, 4,272.63 and 2,153.61 is: 2,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.83 : 4,272.63 = 2,153.61 : x
  2. Step 2: Convert to fraction form
    3,097.83/4,272.63 = 2,153.61/x
  3. Step 3: Cross multiply
    3,097.83x = 4,272.63 × 2,153.61
  4. Step 4: Simplify right side
    3,097.83x = 9,201,578.69
  5. Step 5: Solve for x
    x = 9,201,578.69/3,097.83
  6. Step 6: Final answer
    x = 2,970.33

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1.5x scale

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.