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Finding the Fourth Proportional to 2,018.07, 3,026.01 and 631.03

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Solution

The fourth proportional to 2,018.07, 3,026.01 and 631.03 is: 946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.07 : 3,026.01 = 631.03 : x
  2. Step 2: Convert to fraction form
    2,018.07/3,026.01 = 631.03/x
  3. Step 3: Cross multiply
    2,018.07x = 3,026.01 × 631.03
  4. Step 4: Simplify right side
    2,018.07x = 1,909,495.53
  5. Step 5: Solve for x
    x = 1,909,495.53/2,018.07
  6. Step 6: Final answer
    x = 946.20

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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.