Home / 3,925.55-5,416.93-2,157.24

Finding the Fourth Proportional to 3,925.55, 5,416.93 and 2,157.24

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Solution

The fourth proportional to 3,925.55, 5,416.93 and 2,157.24 is: 2,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.55 : 5,416.93 = 2,157.24 : x
  2. Step 2: Convert to fraction form
    3,925.55/5,416.93 = 2,157.24/x
  3. Step 3: Cross multiply
    3,925.55x = 5,416.93 × 2,157.24
  4. Step 4: Simplify right side
    3,925.55x = 11,685,618.07
  5. Step 5: Solve for x
    x = 11,685,618.07/3,925.55
  6. Step 6: Final answer
    x = 2,976.81

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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.