Home / 2,485.90-3,730.16-1,100.19

Finding the Fourth Proportional to 2,485.90, 3,730.16 and 1,100.19

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Solution

The fourth proportional to 2,485.90, 3,730.16 and 1,100.19 is: 1,650.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.90 : 3,730.16 = 1,100.19 : x
  2. Step 2: Convert to fraction form
    2,485.90/3,730.16 = 1,100.19/x
  3. Step 3: Cross multiply
    2,485.90x = 3,730.16 × 1,100.19
  4. Step 4: Simplify right side
    2,485.90x = 4,103,884.73
  5. Step 5: Solve for x
    x = 4,103,884.73/2,485.90
  6. Step 6: Final answer
    x = 1,650.86

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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.