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Finding the Fourth Proportional to 3,658.56, 5,048.64 and 2,613.12

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Solution

The fourth proportional to 3,658.56, 5,048.64 and 2,613.12 is: 3,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.56 : 5,048.64 = 2,613.12 : x
  2. Step 2: Convert to fraction form
    3,658.56/5,048.64 = 2,613.12/x
  3. Step 3: Cross multiply
    3,658.56x = 5,048.64 × 2,613.12
  4. Step 4: Simplify right side
    3,658.56x = 13,192,702.16
  5. Step 5: Solve for x
    x = 13,192,702.16/3,658.56
  6. Step 6: Final answer
    x = 3,605.98

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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.