Home / 2,018.65-3,026.95-923.78

Finding the Fourth Proportional to 2,018.65, 3,026.95 and 923.78

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Solution

The fourth proportional to 2,018.65, 3,026.95 and 923.78 is: 1,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.65 : 3,026.95 = 923.78 : x
  2. Step 2: Convert to fraction form
    2,018.65/3,026.95 = 923.78/x
  3. Step 3: Cross multiply
    2,018.65x = 3,026.95 × 923.78
  4. Step 4: Simplify right side
    2,018.65x = 2,796,231.25
  5. Step 5: Solve for x
    x = 2,796,231.25/2,018.65
  6. Step 6: Final answer
    x = 1,385.20

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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.