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Finding the Fourth Proportional to 2,017.90, 3,025.94 and 630.90

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Solution

The fourth proportional to 2,017.90, 3,025.94 and 630.90 is: 946.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.90 : 3,025.94 = 630.90 : x
  2. Step 2: Convert to fraction form
    2,017.90/3,025.94 = 630.90/x
  3. Step 3: Cross multiply
    2,017.90x = 3,025.94 × 630.90
  4. Step 4: Simplify right side
    2,017.90x = 1,909,065.55
  5. Step 5: Solve for x
    x = 1,909,065.55/2,017.90
  6. Step 6: Final answer
    x = 946.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.