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Finding the Fourth Proportional to 2,851.42, 4,277.25 and 903.58

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Solution

The fourth proportional to 2,851.42, 4,277.25 and 903.58 is: 1,355.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.42 : 4,277.25 = 903.58 : x
  2. Step 2: Convert to fraction form
    2,851.42/4,277.25 = 903.58/x
  3. Step 3: Cross multiply
    2,851.42x = 4,277.25 × 903.58
  4. Step 4: Simplify right side
    2,851.42x = 3,864,837.56
  5. Step 5: Solve for x
    x = 3,864,837.56/2,851.42
  6. Step 6: Final answer
    x = 1,355.41

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1.5x scale

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.