Home / 3,717.39-5,130.24-2,145.60

Finding the Fourth Proportional to 3,717.39, 5,130.24 and 2,145.60

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Solution

The fourth proportional to 3,717.39, 5,130.24 and 2,145.60 is: 2,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.39 : 5,130.24 = 2,145.60 : x
  2. Step 2: Convert to fraction form
    3,717.39/5,130.24 = 2,145.60/x
  3. Step 3: Cross multiply
    3,717.39x = 5,130.24 × 2,145.60
  4. Step 4: Simplify right side
    3,717.39x = 11,007,442.94
  5. Step 5: Solve for x
    x = 11,007,442.94/3,717.39
  6. Step 6: Final answer
    x = 2,961.07

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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.