Home / 2,158.62-2,977.96-1,411.28

Finding the Fourth Proportional to 2,158.62, 2,977.96 and 1,411.28

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Solution

The fourth proportional to 2,158.62, 2,977.96 and 1,411.28 is: 1,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.62 : 2,977.96 = 1,411.28 : x
  2. Step 2: Convert to fraction form
    2,158.62/2,977.96 = 1,411.28/x
  3. Step 3: Cross multiply
    2,158.62x = 2,977.96 × 1,411.28
  4. Step 4: Simplify right side
    2,158.62x = 4,202,735.39
  5. Step 5: Solve for x
    x = 4,202,735.39/2,158.62
  6. Step 6: Final answer
    x = 1,946.95

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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.