Home / 3,111.34-4,666.93-1,261.96

Finding the Fourth Proportional to 3,111.34, 4,666.93 and 1,261.96

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Solution

The fourth proportional to 3,111.34, 4,666.93 and 1,261.96 is: 1,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.34 : 4,666.93 = 1,261.96 : x
  2. Step 2: Convert to fraction form
    3,111.34/4,666.93 = 1,261.96/x
  3. Step 3: Cross multiply
    3,111.34x = 4,666.93 × 1,261.96
  4. Step 4: Simplify right side
    3,111.34x = 5,889,455.65
  5. Step 5: Solve for x
    x = 5,889,455.65/3,111.34
  6. Step 6: Final answer
    x = 1,892.90

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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.