Home / 3,586.24-5,378-1,394.70

Finding the Fourth Proportional to 3,586.24, 5,378 and 1,394.70

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Solution

The fourth proportional to 3,586.24, 5,378 and 1,394.70 is: 2,091.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.24 : 5,378 = 1,394.70 : x
  2. Step 2: Convert to fraction form
    3,586.24/5,378 = 1,394.70/x
  3. Step 3: Cross multiply
    3,586.24x = 5,378 × 1,394.70
  4. Step 4: Simplify right side
    3,586.24x = 7,500,696.60
  5. Step 5: Solve for x
    x = 7,500,696.60/3,586.24
  6. Step 6: Final answer
    x = 2,091.52

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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.