Home / 3,822.40-5,275.40-2,250.64

Finding the Fourth Proportional to 3,822.40, 5,275.40 and 2,250.64

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Solution

The fourth proportional to 3,822.40, 5,275.40 and 2,250.64 is: 3,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.40 : 5,275.40 = 2,250.64 : x
  2. Step 2: Convert to fraction form
    3,822.40/5,275.40 = 2,250.64/x
  3. Step 3: Cross multiply
    3,822.40x = 5,275.40 × 2,250.64
  4. Step 4: Simplify right side
    3,822.40x = 11,873,026.26
  5. Step 5: Solve for x
    x = 11,873,026.26/3,822.40
  6. Step 6: Final answer
    x = 3,106.17

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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.