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Finding the Fourth Proportional to 3,605.55, 4,975.54 and 2,012.20

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Solution

The fourth proportional to 3,605.55, 4,975.54 and 2,012.20 is: 2,776.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.55 : 4,975.54 = 2,012.20 : x
  2. Step 2: Convert to fraction form
    3,605.55/4,975.54 = 2,012.20/x
  3. Step 3: Cross multiply
    3,605.55x = 4,975.54 × 2,012.20
  4. Step 4: Simplify right side
    3,605.55x = 10,011,764.12
  5. Step 5: Solve for x
    x = 10,011,764.12/3,605.55
  6. Step 6: Final answer
    x = 2,776.77

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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.