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Finding the Fourth Proportional to 4,534.80, 6,803.80 and 1,613.20

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Solution

The fourth proportional to 4,534.80, 6,803.80 and 1,613.20 is: 2,420.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,534.80 : 6,803.80 = 1,613.20 : x
  2. Step 2: Convert to fraction form
    4,534.80/6,803.80 = 1,613.20/x
  3. Step 3: Cross multiply
    4,534.80x = 6,803.80 × 1,613.20
  4. Step 4: Simplify right side
    4,534.80x = 10,975,890.16
  5. Step 5: Solve for x
    x = 10,975,890.16/4,534.80
  6. Step 6: Final answer
    x = 2,420.37

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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.