Home / 6,455.31-8,908.68-3,623.59

Finding the Fourth Proportional to 6,455.31, 8,908.68 and 3,623.59

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Solution

The fourth proportional to 6,455.31, 8,908.68 and 3,623.59 is: 5,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.31 : 8,908.68 = 3,623.59 : x
  2. Step 2: Convert to fraction form
    6,455.31/8,908.68 = 3,623.59/x
  3. Step 3: Cross multiply
    6,455.31x = 8,908.68 × 3,623.59
  4. Step 4: Simplify right side
    6,455.31x = 32,281,403.76
  5. Step 5: Solve for x
    x = 32,281,403.76/6,455.31
  6. Step 6: Final answer
    x = 5,000.75

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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.