Home / 2,018.46-3,028.13-631.77

Finding the Fourth Proportional to 2,018.46, 3,028.13 and 631.77

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Solution

The fourth proportional to 2,018.46, 3,028.13 and 631.77 is: 947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.46 : 3,028.13 = 631.77 : x
  2. Step 2: Convert to fraction form
    2,018.46/3,028.13 = 631.77/x
  3. Step 3: Cross multiply
    2,018.46x = 3,028.13 × 631.77
  4. Step 4: Simplify right side
    2,018.46x = 1,913,081.69
  5. Step 5: Solve for x
    x = 1,913,081.69/2,018.46
  6. Step 6: Final answer
    x = 947.79

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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.