Home / 3,815.00-5,261.64-2,415.32

Finding the Fourth Proportional to 3,815.00, 5,261.64 and 2,415.32

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Solution

The fourth proportional to 3,815.00, 5,261.64 and 2,415.32 is: 3,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.00 : 5,261.64 = 2,415.32 : x
  2. Step 2: Convert to fraction form
    3,815.00/5,261.64 = 2,415.32/x
  3. Step 3: Cross multiply
    3,815.00x = 5,261.64 × 2,415.32
  4. Step 4: Simplify right side
    3,815.00x = 12,708,518.02
  5. Step 5: Solve for x
    x = 12,708,518.02/3,815.00
  6. Step 6: Final answer
    x = 3,331.20

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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.