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Finding the Fourth Proportional to 3,613.88, 4,988 and 2,352.76

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Solution

The fourth proportional to 3,613.88, 4,988 and 2,352.76 is: 3,247.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.88 : 4,988 = 2,352.76 : x
  2. Step 2: Convert to fraction form
    3,613.88/4,988 = 2,352.76/x
  3. Step 3: Cross multiply
    3,613.88x = 4,988 × 2,352.76
  4. Step 4: Simplify right side
    3,613.88x = 11,735,566.88
  5. Step 5: Solve for x
    x = 11,735,566.88/3,613.88
  6. Step 6: Final answer
    x = 3,247.36

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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.