Home / 3,992.07-5,507.63-2,312.56

Finding the Fourth Proportional to 3,992.07, 5,507.63 and 2,312.56

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Solution

The fourth proportional to 3,992.07, 5,507.63 and 2,312.56 is: 3,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.07 : 5,507.63 = 2,312.56 : x
  2. Step 2: Convert to fraction form
    3,992.07/5,507.63 = 2,312.56/x
  3. Step 3: Cross multiply
    3,992.07x = 5,507.63 × 2,312.56
  4. Step 4: Simplify right side
    3,992.07x = 12,736,724.83
  5. Step 5: Solve for x
    x = 12,736,724.83/3,992.07
  6. Step 6: Final answer
    x = 3,190.51

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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.