Home / 6,455.31-8,908.71-3,622.92

Finding the Fourth Proportional to 6,455.31, 8,908.71 and 3,622.92

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Solution

The fourth proportional to 6,455.31, 8,908.71 and 3,622.92 is: 4,999.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.31 : 8,908.71 = 3,622.92 : x
  2. Step 2: Convert to fraction form
    6,455.31/8,908.71 = 3,622.92/x
  3. Step 3: Cross multiply
    6,455.31x = 8,908.71 × 3,622.92
  4. Step 4: Simplify right side
    6,455.31x = 32,275,523.81
  5. Step 5: Solve for x
    x = 32,275,523.81/6,455.31
  6. Step 6: Final answer
    x = 4,999.84

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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.