Home / 3,827.28-5,284.40-2,646.30

Finding the Fourth Proportional to 3,827.28, 5,284.40 and 2,646.30

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Solution

The fourth proportional to 3,827.28, 5,284.40 and 2,646.30 is: 3,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.28 : 5,284.40 = 2,646.30 : x
  2. Step 2: Convert to fraction form
    3,827.28/5,284.40 = 2,646.30/x
  3. Step 3: Cross multiply
    3,827.28x = 5,284.40 × 2,646.30
  4. Step 4: Simplify right side
    3,827.28x = 13,984,107.72
  5. Step 5: Solve for x
    x = 13,984,107.72/3,827.28
  6. Step 6: Final answer
    x = 3,653.80

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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.