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Finding the Fourth Proportional to 3,809.86, 5,260.08 and 2,395.48

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Solution

The fourth proportional to 3,809.86, 5,260.08 and 2,395.48 is: 3,307.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.86 : 5,260.08 = 2,395.48 : x
  2. Step 2: Convert to fraction form
    3,809.86/5,260.08 = 2,395.48/x
  3. Step 3: Cross multiply
    3,809.86x = 5,260.08 × 2,395.48
  4. Step 4: Simplify right side
    3,809.86x = 12,600,416.44
  5. Step 5: Solve for x
    x = 12,600,416.44/3,809.86
  6. Step 6: Final answer
    x = 3,307.32

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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.