Home / 1,812.09-2,500.52-1,015.38

Finding the Fourth Proportional to 1,812.09, 2,500.52 and 1,015.38

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Solution

The fourth proportional to 1,812.09, 2,500.52 and 1,015.38 is: 1,401.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.09 : 2,500.52 = 1,015.38 : x
  2. Step 2: Convert to fraction form
    1,812.09/2,500.52 = 1,015.38/x
  3. Step 3: Cross multiply
    1,812.09x = 2,500.52 × 1,015.38
  4. Step 4: Simplify right side
    1,812.09x = 2,538,972.92
  5. Step 5: Solve for x
    x = 2,538,972.92/1,812.09
  6. Step 6: Final answer
    x = 1,401.13

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1.5x scale

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.