Home / 2,801.32-3,865.86-1,622.60

Finding the Fourth Proportional to 2,801.32, 3,865.86 and 1,622.60

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Solution

The fourth proportional to 2,801.32, 3,865.86 and 1,622.60 is: 2,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801.32 : 3,865.86 = 1,622.60 : x
  2. Step 2: Convert to fraction form
    2,801.32/3,865.86 = 1,622.60/x
  3. Step 3: Cross multiply
    2,801.32x = 3,865.86 × 1,622.60
  4. Step 4: Simplify right side
    2,801.32x = 6,272,744.44
  5. Step 5: Solve for x
    x = 6,272,744.44/2,801.32
  6. Step 6: Final answer
    x = 2,239.21

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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.