Home / 2,160.15-2,981.97-1,662.60

Finding the Fourth Proportional to 2,160.15, 2,981.97 and 1,662.60

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Solution

The fourth proportional to 2,160.15, 2,981.97 and 1,662.60 is: 2,295.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.15 : 2,981.97 = 1,662.60 : x
  2. Step 2: Convert to fraction form
    2,160.15/2,981.97 = 1,662.60/x
  3. Step 3: Cross multiply
    2,160.15x = 2,981.97 × 1,662.60
  4. Step 4: Simplify right side
    2,160.15x = 4,957,823.32
  5. Step 5: Solve for x
    x = 4,957,823.32/2,160.15
  6. Step 6: Final answer
    x = 2,295.13

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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.