Home / 2,883.06-3,979.29-1,688.61

Finding the Fourth Proportional to 2,883.06, 3,979.29 and 1,688.61

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Solution

The fourth proportional to 2,883.06, 3,979.29 and 1,688.61 is: 2,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.06 : 3,979.29 = 1,688.61 : x
  2. Step 2: Convert to fraction form
    2,883.06/3,979.29 = 1,688.61/x
  3. Step 3: Cross multiply
    2,883.06x = 3,979.29 × 1,688.61
  4. Step 4: Simplify right side
    2,883.06x = 6,719,468.89
  5. Step 5: Solve for x
    x = 6,719,468.89/2,883.06
  6. Step 6: Final answer
    x = 2,330.67

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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.