Home / 2,106.28-3,162.66-1,877.32

Finding the Fourth Proportional to 2,106.28, 3,162.66 and 1,877.32

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Solution

The fourth proportional to 2,106.28, 3,162.66 and 1,877.32 is: 2,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.28 : 3,162.66 = 1,877.32 : x
  2. Step 2: Convert to fraction form
    2,106.28/3,162.66 = 1,877.32/x
  3. Step 3: Cross multiply
    2,106.28x = 3,162.66 × 1,877.32
  4. Step 4: Simplify right side
    2,106.28x = 5,937,324.87
  5. Step 5: Solve for x
    x = 5,937,324.87/2,106.28
  6. Step 6: Final answer
    x = 2,818.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.