Home / 6,465.42-8,921.32-3,739.87

Finding the Fourth Proportional to 6,465.42, 8,921.32 and 3,739.87

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Solution

The fourth proportional to 6,465.42, 8,921.32 and 3,739.87 is: 5,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,465.42 : 8,921.32 = 3,739.87 : x
  2. Step 2: Convert to fraction form
    6,465.42/8,921.32 = 3,739.87/x
  3. Step 3: Cross multiply
    6,465.42x = 8,921.32 × 3,739.87
  4. Step 4: Simplify right side
    6,465.42x = 33,364,559.00
  5. Step 5: Solve for x
    x = 33,364,559.00/6,465.42
  6. Step 6: Final answer
    x = 5,160.46

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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.