Home / 2,160.24-2,979-1,374

Finding the Fourth Proportional to 2,160.24, 2,979 and 1,374

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Solution

The fourth proportional to 2,160.24, 2,979 and 1,374 is: 1,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.24 : 2,979 = 1,374 : x
  2. Step 2: Convert to fraction form
    2,160.24/2,979 = 1,374/x
  3. Step 3: Cross multiply
    2,160.24x = 2,979 × 1,374
  4. Step 4: Simplify right side
    2,160.24x = 4,093,146
  5. Step 5: Solve for x
    x = 4,093,146/2,160.24
  6. Step 6: Final answer
    x = 1,894.76

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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.