Home / 2,175.86-3,002.66-1,181.13

Finding the Fourth Proportional to 2,175.86, 3,002.66 and 1,181.13

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Solution

The fourth proportional to 2,175.86, 3,002.66 and 1,181.13 is: 1,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.86 : 3,002.66 = 1,181.13 : x
  2. Step 2: Convert to fraction form
    2,175.86/3,002.66 = 1,181.13/x
  3. Step 3: Cross multiply
    2,175.86x = 3,002.66 × 1,181.13
  4. Step 4: Simplify right side
    2,175.86x = 3,546,541.77
  5. Step 5: Solve for x
    x = 3,546,541.77/2,175.86
  6. Step 6: Final answer
    x = 1,629.95

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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.