Home / 3,188.03-4,400.87-1,861.52

Finding the Fourth Proportional to 3,188.03, 4,400.87 and 1,861.52

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Solution

The fourth proportional to 3,188.03, 4,400.87 and 1,861.52 is: 2,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.03 : 4,400.87 = 1,861.52 : x
  2. Step 2: Convert to fraction form
    3,188.03/4,400.87 = 1,861.52/x
  3. Step 3: Cross multiply
    3,188.03x = 4,400.87 × 1,861.52
  4. Step 4: Simplify right side
    3,188.03x = 8,192,276.21
  5. Step 5: Solve for x
    x = 8,192,276.21/3,188.03
  6. Step 6: Final answer
    x = 2,569.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.