Home / 2,154.57-3,232.47-767.95

Finding the Fourth Proportional to 2,154.57, 3,232.47 and 767.95

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Solution

The fourth proportional to 2,154.57, 3,232.47 and 767.95 is: 1,152.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.57 : 3,232.47 = 767.95 : x
  2. Step 2: Convert to fraction form
    2,154.57/3,232.47 = 767.95/x
  3. Step 3: Cross multiply
    2,154.57x = 3,232.47 × 767.95
  4. Step 4: Simplify right side
    2,154.57x = 2,482,370.14
  5. Step 5: Solve for x
    x = 2,482,370.14/2,154.57
  6. Step 6: Final answer
    x = 1,152.14

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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.