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Finding the Fourth Proportional to 3,649.65, 5,031.48 and 2,752.98

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Solution

The fourth proportional to 3,649.65, 5,031.48 and 2,752.98 is: 3,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.65 : 5,031.48 = 2,752.98 : x
  2. Step 2: Convert to fraction form
    3,649.65/5,031.48 = 2,752.98/x
  3. Step 3: Cross multiply
    3,649.65x = 5,031.48 × 2,752.98
  4. Step 4: Simplify right side
    3,649.65x = 13,851,563.81
  5. Step 5: Solve for x
    x = 13,851,563.81/3,649.65
  6. Step 6: Final answer
    x = 3,795.31

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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.