Home / 3,924.51-5,415.93-2,156.16

Finding the Fourth Proportional to 3,924.51, 5,415.93 and 2,156.16

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Solution

The fourth proportional to 3,924.51, 5,415.93 and 2,156.16 is: 2,975.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.51 : 5,415.93 = 2,156.16 : x
  2. Step 2: Convert to fraction form
    3,924.51/5,415.93 = 2,156.16/x
  3. Step 3: Cross multiply
    3,924.51x = 5,415.93 × 2,156.16
  4. Step 4: Simplify right side
    3,924.51x = 11,677,619.78
  5. Step 5: Solve for x
    x = 11,677,619.78/3,924.51
  6. Step 6: Final answer
    x = 2,975.56

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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.