Home / 2,731.16-3,767.86-1,611.65

Finding the Fourth Proportional to 2,731.16, 3,767.86 and 1,611.65

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Solution

The fourth proportional to 2,731.16, 3,767.86 and 1,611.65 is: 2,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.16 : 3,767.86 = 1,611.65 : x
  2. Step 2: Convert to fraction form
    2,731.16/3,767.86 = 1,611.65/x
  3. Step 3: Cross multiply
    2,731.16x = 3,767.86 × 1,611.65
  4. Step 4: Simplify right side
    2,731.16x = 6,072,471.57
  5. Step 5: Solve for x
    x = 6,072,471.57/2,731.16
  6. Step 6: Final answer
    x = 2,223.40

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1.5x scale

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.