Home / 3,717.58-5,131.02-2,145.46

Finding the Fourth Proportional to 3,717.58, 5,131.02 and 2,145.46

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Solution

The fourth proportional to 3,717.58, 5,131.02 and 2,145.46 is: 2,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.58 : 5,131.02 = 2,145.46 : x
  2. Step 2: Convert to fraction form
    3,717.58/5,131.02 = 2,145.46/x
  3. Step 3: Cross multiply
    3,717.58x = 5,131.02 × 2,145.46
  4. Step 4: Simplify right side
    3,717.58x = 11,008,398.17
  5. Step 5: Solve for x
    x = 11,008,398.17/3,717.58
  6. Step 6: Final answer
    x = 2,961.17

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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.