Home / 6,412.50-8,849.79-3,618.54

Finding the Fourth Proportional to 6,412.50, 8,849.79 and 3,618.54

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Solution

The fourth proportional to 6,412.50, 8,849.79 and 3,618.54 is: 4,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.50 : 8,849.79 = 3,618.54 : x
  2. Step 2: Convert to fraction form
    6,412.50/8,849.79 = 3,618.54/x
  3. Step 3: Cross multiply
    6,412.50x = 8,849.79 × 3,618.54
  4. Step 4: Simplify right side
    6,412.50x = 32,023,319.11
  5. Step 5: Solve for x
    x = 32,023,319.11/6,412.50
  6. Step 6: Final answer
    x = 4,993.89

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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.