Home / 3,111.66-4,667.49-2,561.64

Finding the Fourth Proportional to 3,111.66, 4,667.49 and 2,561.64

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Solution

The fourth proportional to 3,111.66, 4,667.49 and 2,561.64 is: 3,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.66 : 4,667.49 = 2,561.64 : x
  2. Step 2: Convert to fraction form
    3,111.66/4,667.49 = 2,561.64/x
  3. Step 3: Cross multiply
    3,111.66x = 4,667.49 × 2,561.64
  4. Step 4: Simplify right side
    3,111.66x = 11,956,411.58
  5. Step 5: Solve for x
    x = 11,956,411.58/3,111.66
  6. Step 6: Final answer
    x = 3,842.45

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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.