Home / 2,119.62-2,925.22-1,175.44

Finding the Fourth Proportional to 2,119.62, 2,925.22 and 1,175.44

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Solution

The fourth proportional to 2,119.62, 2,925.22 and 1,175.44 is: 1,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.62 : 2,925.22 = 1,175.44 : x
  2. Step 2: Convert to fraction form
    2,119.62/2,925.22 = 1,175.44/x
  3. Step 3: Cross multiply
    2,119.62x = 2,925.22 × 1,175.44
  4. Step 4: Simplify right side
    2,119.62x = 3,438,420.60
  5. Step 5: Solve for x
    x = 3,438,420.60/2,119.62
  6. Step 6: Final answer
    x = 1,622.19

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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.