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Finding the Fourth Proportional to 6,319.99, 8,721.98 and 3,525.49

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Solution

The fourth proportional to 6,319.99, 8,721.98 and 3,525.49 is: 4,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.99 : 8,721.98 = 3,525.49 : x
  2. Step 2: Convert to fraction form
    6,319.99/8,721.98 = 3,525.49/x
  3. Step 3: Cross multiply
    6,319.99x = 8,721.98 × 3,525.49
  4. Step 4: Simplify right side
    6,319.99x = 30,749,253.27
  5. Step 5: Solve for x
    x = 30,749,253.27/6,319.99
  6. Step 6: Final answer
    x = 4,865.40

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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.