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Finding the Fourth Proportional to 3,148.50, 4,722.95 and 957.39

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Solution

The fourth proportional to 3,148.50, 4,722.95 and 957.39 is: 1,436.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.50 : 4,722.95 = 957.39 : x
  2. Step 2: Convert to fraction form
    3,148.50/4,722.95 = 957.39/x
  3. Step 3: Cross multiply
    3,148.50x = 4,722.95 × 957.39
  4. Step 4: Simplify right side
    3,148.50x = 4,521,700.31
  5. Step 5: Solve for x
    x = 4,521,700.31/3,148.50
  6. Step 6: Final answer
    x = 1,436.14

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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.