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Finding the Fourth Proportional to 3,975.79, 5,484.79 and 2,558.97

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Solution

The fourth proportional to 3,975.79, 5,484.79 and 2,558.97 is: 3,530.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.79 : 5,484.79 = 2,558.97 : x
  2. Step 2: Convert to fraction form
    3,975.79/5,484.79 = 2,558.97/x
  3. Step 3: Cross multiply
    3,975.79x = 5,484.79 × 2,558.97
  4. Step 4: Simplify right side
    3,975.79x = 14,035,405.75
  5. Step 5: Solve for x
    x = 14,035,405.75/3,975.79
  6. Step 6: Final answer
    x = 3,530.22

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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.