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Finding the Fourth Proportional to 3,798.40, 5,240.21 and 2,522.88

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Solution

The fourth proportional to 3,798.40, 5,240.21 and 2,522.88 is: 3,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.40 : 5,240.21 = 2,522.88 : x
  2. Step 2: Convert to fraction form
    3,798.40/5,240.21 = 2,522.88/x
  3. Step 3: Cross multiply
    3,798.40x = 5,240.21 × 2,522.88
  4. Step 4: Simplify right side
    3,798.40x = 13,220,421.00
  5. Step 5: Solve for x
    x = 13,220,421.00/3,798.40
  6. Step 6: Final answer
    x = 3,480.52

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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.