Home / 1,851.35-2,778.26-1,018.76

Finding the Fourth Proportional to 1,851.35, 2,778.26 and 1,018.76

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Solution

The fourth proportional to 1,851.35, 2,778.26 and 1,018.76 is: 1,528.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.35 : 2,778.26 = 1,018.76 : x
  2. Step 2: Convert to fraction form
    1,851.35/2,778.26 = 1,018.76/x
  3. Step 3: Cross multiply
    1,851.35x = 2,778.26 × 1,018.76
  4. Step 4: Simplify right side
    1,851.35x = 2,830,361.17
  5. Step 5: Solve for x
    x = 2,830,361.17/1,851.35
  6. Step 6: Final answer
    x = 1,528.81

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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.