Home / 2,147.54-2,961.26-1,865.35

Finding the Fourth Proportional to 2,147.54, 2,961.26 and 1,865.35

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Solution

The fourth proportional to 2,147.54, 2,961.26 and 1,865.35 is: 2,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.54 : 2,961.26 = 1,865.35 : x
  2. Step 2: Convert to fraction form
    2,147.54/2,961.26 = 1,865.35/x
  3. Step 3: Cross multiply
    2,147.54x = 2,961.26 × 1,865.35
  4. Step 4: Simplify right side
    2,147.54x = 5,523,787.71
  5. Step 5: Solve for x
    x = 5,523,787.71/2,147.54
  6. Step 6: Final answer
    x = 2,572.15

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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.