Home / 2,899.25-4,000.92-1,640.37

Finding the Fourth Proportional to 2,899.25, 4,000.92 and 1,640.37

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Solution

The fourth proportional to 2,899.25, 4,000.92 and 1,640.37 is: 2,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.25 : 4,000.92 = 1,640.37 : x
  2. Step 2: Convert to fraction form
    2,899.25/4,000.92 = 1,640.37/x
  3. Step 3: Cross multiply
    2,899.25x = 4,000.92 × 1,640.37
  4. Step 4: Simplify right side
    2,899.25x = 6,562,989.14
  5. Step 5: Solve for x
    x = 6,562,989.14/2,899.25
  6. Step 6: Final answer
    x = 2,263.69

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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.