Home / 2,455.90-3,681.54-1,222.11

Finding the Fourth Proportional to 2,455.90, 3,681.54 and 1,222.11

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Solution

The fourth proportional to 2,455.90, 3,681.54 and 1,222.11 is: 1,832.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.90 : 3,681.54 = 1,222.11 : x
  2. Step 2: Convert to fraction form
    2,455.90/3,681.54 = 1,222.11/x
  3. Step 3: Cross multiply
    2,455.90x = 3,681.54 × 1,222.11
  4. Step 4: Simplify right side
    2,455.90x = 4,499,246.85
  5. Step 5: Solve for x
    x = 4,499,246.85/2,455.90
  6. Step 6: Final answer
    x = 1,832.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.