Home / 1,820.14-2,725.65-1,123.94

Finding the Fourth Proportional to 1,820.14, 2,725.65 and 1,123.94

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Solution

The fourth proportional to 1,820.14, 2,725.65 and 1,123.94 is: 1,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.14 : 2,725.65 = 1,123.94 : x
  2. Step 2: Convert to fraction form
    1,820.14/2,725.65 = 1,123.94/x
  3. Step 3: Cross multiply
    1,820.14x = 2,725.65 × 1,123.94
  4. Step 4: Simplify right side
    1,820.14x = 3,063,473.88
  5. Step 5: Solve for x
    x = 3,063,473.88/1,820.14
  6. Step 6: Final answer
    x = 1,683.10

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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.