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Finding the Fourth Proportional to 2,956.80, 4,438.80 and 1,495.20

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Solution

The fourth proportional to 2,956.80, 4,438.80 and 1,495.20 is: 2,244.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.80 : 4,438.80 = 1,495.20 : x
  2. Step 2: Convert to fraction form
    2,956.80/4,438.80 = 1,495.20/x
  3. Step 3: Cross multiply
    2,956.80x = 4,438.80 × 1,495.20
  4. Step 4: Simplify right side
    2,956.80x = 6,636,893.76
  5. Step 5: Solve for x
    x = 6,636,893.76/2,956.80
  6. Step 6: Final answer
    x = 2,244.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.