Home / 1,957.32-2,938.14-1,378.44

Finding the Fourth Proportional to 1,957.32, 2,938.14 and 1,378.44

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Solution

The fourth proportional to 1,957.32, 2,938.14 and 1,378.44 is: 2,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.32 : 2,938.14 = 1,378.44 : x
  2. Step 2: Convert to fraction form
    1,957.32/2,938.14 = 1,378.44/x
  3. Step 3: Cross multiply
    1,957.32x = 2,938.14 × 1,378.44
  4. Step 4: Simplify right side
    1,957.32x = 4,050,049.70
  5. Step 5: Solve for x
    x = 4,050,049.70/1,957.32
  6. Step 6: Final answer
    x = 2,069.18

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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.