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Finding the Fourth Proportional to 3,809.59, 5,260.47 and 2,395.64

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Solution

The fourth proportional to 3,809.59, 5,260.47 and 2,395.64 is: 3,308.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.59 : 5,260.47 = 2,395.64 : x
  2. Step 2: Convert to fraction form
    3,809.59/5,260.47 = 2,395.64/x
  3. Step 3: Cross multiply
    3,809.59x = 5,260.47 × 2,395.64
  4. Step 4: Simplify right side
    3,809.59x = 12,602,180.40
  5. Step 5: Solve for x
    x = 12,602,180.40/3,809.59
  6. Step 6: Final answer
    x = 3,308.02

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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.