Home / 1,436.10-2,154.32-511.75

Finding the Fourth Proportional to 1,436.10, 2,154.32 and 511.75

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Solution

The fourth proportional to 1,436.10, 2,154.32 and 511.75 is: 767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.10 : 2,154.32 = 511.75 : x
  2. Step 2: Convert to fraction form
    1,436.10/2,154.32 = 511.75/x
  3. Step 3: Cross multiply
    1,436.10x = 2,154.32 × 511.75
  4. Step 4: Simplify right side
    1,436.10x = 1,102,472.21
  5. Step 5: Solve for x
    x = 1,102,472.21/1,436.10
  6. Step 6: Final answer
    x = 767.69

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