Home / 2,106.70-3,156.94-1,876.02

Finding the Fourth Proportional to 2,106.70, 3,156.94 and 1,876.02

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Solution

The fourth proportional to 2,106.70, 3,156.94 and 1,876.02 is: 2,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.70 : 3,156.94 = 1,876.02 : x
  2. Step 2: Convert to fraction form
    2,106.70/3,156.94 = 1,876.02/x
  3. Step 3: Cross multiply
    2,106.70x = 3,156.94 × 1,876.02
  4. Step 4: Simplify right side
    2,106.70x = 5,922,482.58
  5. Step 5: Solve for x
    x = 5,922,482.58/2,106.70
  6. Step 6: Final answer
    x = 2,811.26

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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.