Home / 4,431.64-6,115.60-2,640.36

Finding the Fourth Proportional to 4,431.64, 6,115.60 and 2,640.36

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Solution

The fourth proportional to 4,431.64, 6,115.60 and 2,640.36 is: 3,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.64 : 6,115.60 = 2,640.36 : x
  2. Step 2: Convert to fraction form
    4,431.64/6,115.60 = 2,640.36/x
  3. Step 3: Cross multiply
    4,431.64x = 6,115.60 × 2,640.36
  4. Step 4: Simplify right side
    4,431.64x = 16,147,385.62
  5. Step 5: Solve for x
    x = 16,147,385.62/4,431.64
  6. Step 6: Final answer
    x = 3,643.66

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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.