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Finding the Fourth Proportional to 3,672.66, 5,068.19 and 2,100.66

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Solution

The fourth proportional to 3,672.66, 5,068.19 and 2,100.66 is: 2,898.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.66 : 5,068.19 = 2,100.66 : x
  2. Step 2: Convert to fraction form
    3,672.66/5,068.19 = 2,100.66/x
  3. Step 3: Cross multiply
    3,672.66x = 5,068.19 × 2,100.66
  4. Step 4: Simplify right side
    3,672.66x = 10,646,533.50
  5. Step 5: Solve for x
    x = 10,646,533.50/3,672.66
  6. Step 6: Final answer
    x = 2,898.86

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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.