Home / 3,925.42-5,416.74-2,156.58

Finding the Fourth Proportional to 3,925.42, 5,416.74 and 2,156.58

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Solution

The fourth proportional to 3,925.42, 5,416.74 and 2,156.58 is: 2,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.42 : 5,416.74 = 2,156.58 : x
  2. Step 2: Convert to fraction form
    3,925.42/5,416.74 = 2,156.58/x
  3. Step 3: Cross multiply
    3,925.42x = 5,416.74 × 2,156.58
  4. Step 4: Simplify right side
    3,925.42x = 11,681,633.15
  5. Step 5: Solve for x
    x = 11,681,633.15/3,925.42
  6. Step 6: Final answer
    x = 2,975.89

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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.