Home / 3,111.08-4,666.79-1,261.92

Finding the Fourth Proportional to 3,111.08, 4,666.79 and 1,261.92

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Solution

The fourth proportional to 3,111.08, 4,666.79 and 1,261.92 is: 1,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.08 : 4,666.79 = 1,261.92 : x
  2. Step 2: Convert to fraction form
    3,111.08/4,666.79 = 1,261.92/x
  3. Step 3: Cross multiply
    3,111.08x = 4,666.79 × 1,261.92
  4. Step 4: Simplify right side
    3,111.08x = 5,889,115.64
  5. Step 5: Solve for x
    x = 5,889,115.64/3,111.08
  6. Step 6: Final answer
    x = 1,892.95

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1.5x scale

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.