Home / 3,586.40-5,378.24-1,394.62

Finding the Fourth Proportional to 3,586.40, 5,378.24 and 1,394.62

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Solution

The fourth proportional to 3,586.40, 5,378.24 and 1,394.62 is: 2,091.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.40 : 5,378.24 = 1,394.62 : x
  2. Step 2: Convert to fraction form
    3,586.40/5,378.24 = 1,394.62/x
  3. Step 3: Cross multiply
    3,586.40x = 5,378.24 × 1,394.62
  4. Step 4: Simplify right side
    3,586.40x = 7,500,601.07
  5. Step 5: Solve for x
    x = 7,500,601.07/3,586.40
  6. Step 6: Final answer
    x = 2,091.40

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1.5x scale

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.