Home / 1,436.57-2,155.77-614.85

Finding the Fourth Proportional to 1,436.57, 2,155.77 and 614.85

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Solution

The fourth proportional to 1,436.57, 2,155.77 and 614.85 is: 922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.57 : 2,155.77 = 614.85 : x
  2. Step 2: Convert to fraction form
    1,436.57/2,155.77 = 614.85/x
  3. Step 3: Cross multiply
    1,436.57x = 2,155.77 × 614.85
  4. Step 4: Simplify right side
    1,436.57x = 1,325,475.18
  5. Step 5: Solve for x
    x = 1,325,475.18/1,436.57
  6. Step 6: Final answer
    x = 922.67

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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.