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Finding the Fourth Proportional to 3,890.02, 5,835 and 968.31

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Solution

The fourth proportional to 3,890.02, 5,835 and 968.31 is: 1,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.02 : 5,835 = 968.31 : x
  2. Step 2: Convert to fraction form
    3,890.02/5,835 = 968.31/x
  3. Step 3: Cross multiply
    3,890.02x = 5,835 × 968.31
  4. Step 4: Simplify right side
    3,890.02x = 5,650,059.68
  5. Step 5: Solve for x
    x = 5,650,059.68/3,890.02
  6. Step 6: Final answer
    x = 1,452.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.