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Finding the Fourth Proportional to 6,395.60, 8,825.93 and 3,742.49

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Solution

The fourth proportional to 6,395.60, 8,825.93 and 3,742.49 is: 5,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,395.60 : 8,825.93 = 3,742.49 : x
  2. Step 2: Convert to fraction form
    6,395.60/8,825.93 = 3,742.49/x
  3. Step 3: Cross multiply
    6,395.60x = 8,825.93 × 3,742.49
  4. Step 4: Simplify right side
    6,395.60x = 33,030,954.77
  5. Step 5: Solve for x
    x = 33,030,954.77/6,395.60
  6. Step 6: Final answer
    x = 5,164.64

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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.