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Finding the Fourth Proportional to 3,613.04, 5,420.02 and 1,146.98

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Solution

The fourth proportional to 3,613.04, 5,420.02 and 1,146.98 is: 1,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.04 : 5,420.02 = 1,146.98 : x
  2. Step 2: Convert to fraction form
    3,613.04/5,420.02 = 1,146.98/x
  3. Step 3: Cross multiply
    3,613.04x = 5,420.02 × 1,146.98
  4. Step 4: Simplify right side
    3,613.04x = 6,216,654.54
  5. Step 5: Solve for x
    x = 6,216,654.54/3,613.04
  6. Step 6: Final answer
    x = 1,720.62

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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.