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Finding the Fourth Proportional to 3,528.86, 4,866.03 and 2,975.42

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Solution

The fourth proportional to 3,528.86, 4,866.03 and 2,975.42 is: 4,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.86 : 4,866.03 = 2,975.42 : x
  2. Step 2: Convert to fraction form
    3,528.86/4,866.03 = 2,975.42/x
  3. Step 3: Cross multiply
    3,528.86x = 4,866.03 × 2,975.42
  4. Step 4: Simplify right side
    3,528.86x = 14,478,495.15
  5. Step 5: Solve for x
    x = 14,478,495.15/3,528.86
  6. Step 6: Final answer
    x = 4,102.89

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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.