Home / 2,835.08-3,912.62-1,640.24

Finding the Fourth Proportional to 2,835.08, 3,912.62 and 1,640.24

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Solution

The fourth proportional to 2,835.08, 3,912.62 and 1,640.24 is: 2,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.08 : 3,912.62 = 1,640.24 : x
  2. Step 2: Convert to fraction form
    2,835.08/3,912.62 = 1,640.24/x
  3. Step 3: Cross multiply
    2,835.08x = 3,912.62 × 1,640.24
  4. Step 4: Simplify right side
    2,835.08x = 6,417,635.83
  5. Step 5: Solve for x
    x = 6,417,635.83/2,835.08
  6. Step 6: Final answer
    x = 2,263.65

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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.