Home / 2,010.36-3,001.78-1,800.78

Finding the Fourth Proportional to 2,010.36, 3,001.78 and 1,800.78

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Solution

The fourth proportional to 2,010.36, 3,001.78 and 1,800.78 is: 2,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.36 : 3,001.78 = 1,800.78 : x
  2. Step 2: Convert to fraction form
    2,010.36/3,001.78 = 1,800.78/x
  3. Step 3: Cross multiply
    2,010.36x = 3,001.78 × 1,800.78
  4. Step 4: Simplify right side
    2,010.36x = 5,405,545.39
  5. Step 5: Solve for x
    x = 5,405,545.39/2,010.36
  6. Step 6: Final answer
    x = 2,688.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.