Home / 2,719.66-3,746.13-2,129.14

Finding the Fourth Proportional to 2,719.66, 3,746.13 and 2,129.14

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Solution

The fourth proportional to 2,719.66, 3,746.13 and 2,129.14 is: 2,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.66 : 3,746.13 = 2,129.14 : x
  2. Step 2: Convert to fraction form
    2,719.66/3,746.13 = 2,129.14/x
  3. Step 3: Cross multiply
    2,719.66x = 3,746.13 × 2,129.14
  4. Step 4: Simplify right side
    2,719.66x = 7,976,035.23
  5. Step 5: Solve for x
    x = 7,976,035.23/2,719.66
  6. Step 6: Final answer
    x = 2,932.73

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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.