Home / 2,845.64-4,270.58-2,153.18

Finding the Fourth Proportional to 2,845.64, 4,270.58 and 2,153.18

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Solution

The fourth proportional to 2,845.64, 4,270.58 and 2,153.18 is: 3,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.64 : 4,270.58 = 2,153.18 : x
  2. Step 2: Convert to fraction form
    2,845.64/4,270.58 = 2,153.18/x
  3. Step 3: Cross multiply
    2,845.64x = 4,270.58 × 2,153.18
  4. Step 4: Simplify right side
    2,845.64x = 9,195,327.44
  5. Step 5: Solve for x
    x = 9,195,327.44/2,845.64
  6. Step 6: Final answer
    x = 3,231.37

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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.