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Finding the Fourth Proportional to 3,363.66, 4,643.10 and 2,889.66

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Solution

The fourth proportional to 3,363.66, 4,643.10 and 2,889.66 is: 3,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.66 : 4,643.10 = 2,889.66 : x
  2. Step 2: Convert to fraction form
    3,363.66/4,643.10 = 2,889.66/x
  3. Step 3: Cross multiply
    3,363.66x = 4,643.10 × 2,889.66
  4. Step 4: Simplify right side
    3,363.66x = 13,416,980.35
  5. Step 5: Solve for x
    x = 13,416,980.35/3,363.66
  6. Step 6: Final answer
    x = 3,988.80

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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.