Home / 3,643.56-5,033.70-2,807.64

Finding the Fourth Proportional to 3,643.56, 5,033.70 and 2,807.64

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Solution

The fourth proportional to 3,643.56, 5,033.70 and 2,807.64 is: 3,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.56 : 5,033.70 = 2,807.64 : x
  2. Step 2: Convert to fraction form
    3,643.56/5,033.70 = 2,807.64/x
  3. Step 3: Cross multiply
    3,643.56x = 5,033.70 × 2,807.64
  4. Step 4: Simplify right side
    3,643.56x = 14,132,817.47
  5. Step 5: Solve for x
    x = 14,132,817.47/3,643.56
  6. Step 6: Final answer
    x = 3,878.85

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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.