Home / 2,010.45-3,015.68-623.78

Finding the Fourth Proportional to 2,010.45, 3,015.68 and 623.78

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Solution

The fourth proportional to 2,010.45, 3,015.68 and 623.78 is: 935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.45 : 3,015.68 = 623.78 : x
  2. Step 2: Convert to fraction form
    2,010.45/3,015.68 = 623.78/x
  3. Step 3: Cross multiply
    2,010.45x = 3,015.68 × 623.78
  4. Step 4: Simplify right side
    2,010.45x = 1,881,102.67
  5. Step 5: Solve for x
    x = 1,881,102.67/2,010.45
  6. Step 6: Final answer
    x = 935.66

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1.5x scale

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.