Home / 3,889.20-5,833.52-1,580.64

Finding the Fourth Proportional to 3,889.20, 5,833.52 and 1,580.64

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Solution

The fourth proportional to 3,889.20, 5,833.52 and 1,580.64 is: 2,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.20 : 5,833.52 = 1,580.64 : x
  2. Step 2: Convert to fraction form
    3,889.20/5,833.52 = 1,580.64/x
  3. Step 3: Cross multiply
    3,889.20x = 5,833.52 × 1,580.64
  4. Step 4: Simplify right side
    3,889.20x = 9,220,695.05
  5. Step 5: Solve for x
    x = 9,220,695.05/3,889.20
  6. Step 6: Final answer
    x = 2,370.85

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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.