Home / 2,873.94-3,960.09-2,312.16

Finding the Fourth Proportional to 2,873.94, 3,960.09 and 2,312.16

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Solution

The fourth proportional to 2,873.94, 3,960.09 and 2,312.16 is: 3,186.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.94 : 3,960.09 = 2,312.16 : x
  2. Step 2: Convert to fraction form
    2,873.94/3,960.09 = 2,312.16/x
  3. Step 3: Cross multiply
    2,873.94x = 3,960.09 × 2,312.16
  4. Step 4: Simplify right side
    2,873.94x = 9,156,361.69
  5. Step 5: Solve for x
    x = 9,156,361.69/2,873.94
  6. Step 6: Final answer
    x = 3,186.00

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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.