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Finding the Fourth Proportional to 2,158.88, 2,977.92 and 1,495.76

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Solution

The fourth proportional to 2,158.88, 2,977.92 and 1,495.76 is: 2,063.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.88 : 2,977.92 = 1,495.76 : x
  2. Step 2: Convert to fraction form
    2,158.88/2,977.92 = 1,495.76/x
  3. Step 3: Cross multiply
    2,158.88x = 2,977.92 × 1,495.76
  4. Step 4: Simplify right side
    2,158.88x = 4,454,253.62
  5. Step 5: Solve for x
    x = 4,454,253.62/2,158.88
  6. Step 6: Final answer
    x = 2,063.22

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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.