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Finding the Fourth Proportional to 6,290.99, 8,681.66 and 3,458.49

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Solution

The fourth proportional to 6,290.99, 8,681.66 and 3,458.49 is: 4,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.99 : 8,681.66 = 3,458.49 : x
  2. Step 2: Convert to fraction form
    6,290.99/8,681.66 = 3,458.49/x
  3. Step 3: Cross multiply
    6,290.99x = 8,681.66 × 3,458.49
  4. Step 4: Simplify right side
    6,290.99x = 30,025,416.87
  5. Step 5: Solve for x
    x = 30,025,416.87/6,290.99
  6. Step 6: Final answer
    x = 4,772.77

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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.