Home / 1,812.45-2,501.16-1,015.85

Finding the Fourth Proportional to 1,812.45, 2,501.16 and 1,015.85

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Solution

The fourth proportional to 1,812.45, 2,501.16 and 1,015.85 is: 1,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.45 : 2,501.16 = 1,015.85 : x
  2. Step 2: Convert to fraction form
    1,812.45/2,501.16 = 1,015.85/x
  3. Step 3: Cross multiply
    1,812.45x = 2,501.16 × 1,015.85
  4. Step 4: Simplify right side
    1,812.45x = 2,540,800.26
  5. Step 5: Solve for x
    x = 2,540,800.26/1,812.45
  6. Step 6: Final answer
    x = 1,401.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.