Home / 1,942.38-2,680.02-1,156.68

Finding the Fourth Proportional to 1,942.38, 2,680.02 and 1,156.68

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Solution

The fourth proportional to 1,942.38, 2,680.02 and 1,156.68 is: 1,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.38 : 2,680.02 = 1,156.68 : x
  2. Step 2: Convert to fraction form
    1,942.38/2,680.02 = 1,156.68/x
  3. Step 3: Cross multiply
    1,942.38x = 2,680.02 × 1,156.68
  4. Step 4: Simplify right side
    1,942.38x = 3,099,925.53
  5. Step 5: Solve for x
    x = 3,099,925.53/1,942.38
  6. Step 6: Final answer
    x = 1,595.94

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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.