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Finding the Fourth Proportional to 3,775.78, 5,210.63 and 2,283.44

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Solution

The fourth proportional to 3,775.78, 5,210.63 and 2,283.44 is: 3,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.78 : 5,210.63 = 2,283.44 : x
  2. Step 2: Convert to fraction form
    3,775.78/5,210.63 = 2,283.44/x
  3. Step 3: Cross multiply
    3,775.78x = 5,210.63 × 2,283.44
  4. Step 4: Simplify right side
    3,775.78x = 11,898,140.62
  5. Step 5: Solve for x
    x = 11,898,140.62/3,775.78
  6. Step 6: Final answer
    x = 3,151.18

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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.