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Finding the Fourth Proportional to 2,636.49, 3,636.05 and 1,895.34

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Solution

The fourth proportional to 2,636.49, 3,636.05 and 1,895.34 is: 2,613.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.49 : 3,636.05 = 1,895.34 : x
  2. Step 2: Convert to fraction form
    2,636.49/3,636.05 = 1,895.34/x
  3. Step 3: Cross multiply
    2,636.49x = 3,636.05 × 1,895.34
  4. Step 4: Simplify right side
    2,636.49x = 6,891,551.01
  5. Step 5: Solve for x
    x = 6,891,551.01/2,636.49
  6. Step 6: Final answer
    x = 2,613.91

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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.