Home / 1,812.38-2,500.88-1,015.68

Finding the Fourth Proportional to 1,812.38, 2,500.88 and 1,015.68

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Solution

The fourth proportional to 1,812.38, 2,500.88 and 1,015.68 is: 1,401.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.38 : 2,500.88 = 1,015.68 : x
  2. Step 2: Convert to fraction form
    1,812.38/2,500.88 = 1,015.68/x
  3. Step 3: Cross multiply
    1,812.38x = 2,500.88 × 1,015.68
  4. Step 4: Simplify right side
    1,812.38x = 2,540,093.80
  5. Step 5: Solve for x
    x = 2,540,093.80/1,812.38
  6. Step 6: Final answer
    x = 1,401.52

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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.