Home / 3,487.83-5,229.63-1,639.50

Finding the Fourth Proportional to 3,487.83, 5,229.63 and 1,639.50

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Solution

The fourth proportional to 3,487.83, 5,229.63 and 1,639.50 is: 2,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.83 : 5,229.63 = 1,639.50 : x
  2. Step 2: Convert to fraction form
    3,487.83/5,229.63 = 1,639.50/x
  3. Step 3: Cross multiply
    3,487.83x = 5,229.63 × 1,639.50
  4. Step 4: Simplify right side
    3,487.83x = 8,573,978.39
  5. Step 5: Solve for x
    x = 8,573,978.39/3,487.83
  6. Step 6: Final answer
    x = 2,458.26

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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.