Home / 3,822.12-5,272.74-2,405.16

Finding the Fourth Proportional to 3,822.12, 5,272.74 and 2,405.16

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Solution

The fourth proportional to 3,822.12, 5,272.74 and 2,405.16 is: 3,318.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.12 : 5,272.74 = 2,405.16 : x
  2. Step 2: Convert to fraction form
    3,822.12/5,272.74 = 2,405.16/x
  3. Step 3: Cross multiply
    3,822.12x = 5,272.74 × 2,405.16
  4. Step 4: Simplify right side
    3,822.12x = 12,681,783.34
  5. Step 5: Solve for x
    x = 12,681,783.34/3,822.12
  6. Step 6: Final answer
    x = 3,318.00

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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.