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Finding the Fourth Proportional to 3,775.88, 5,210.72 and 2,203.98

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Solution

The fourth proportional to 3,775.88, 5,210.72 and 2,203.98 is: 3,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.88 : 5,210.72 = 2,203.98 : x
  2. Step 2: Convert to fraction form
    3,775.88/5,210.72 = 2,203.98/x
  3. Step 3: Cross multiply
    3,775.88x = 5,210.72 × 2,203.98
  4. Step 4: Simplify right side
    3,775.88x = 11,484,311.65
  5. Step 5: Solve for x
    x = 11,484,311.65/3,775.88
  6. Step 6: Final answer
    x = 3,041.50

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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.