Home / 3,190.87-4,404.60-1,865.00

Finding the Fourth Proportional to 3,190.87, 4,404.60 and 1,865.00

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Solution

The fourth proportional to 3,190.87, 4,404.60 and 1,865.00 is: 2,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.87 : 4,404.60 = 1,865.00 : x
  2. Step 2: Convert to fraction form
    3,190.87/4,404.60 = 1,865.00/x
  3. Step 3: Cross multiply
    3,190.87x = 4,404.60 × 1,865.00
  4. Step 4: Simplify right side
    3,190.87x = 8,214,590.01
  5. Step 5: Solve for x
    x = 8,214,590.01/3,190.87
  6. Step 6: Final answer
    x = 2,574.41

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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.