Home / 2,851.39-3,933.88-1,672.23

Finding the Fourth Proportional to 2,851.39, 3,933.88 and 1,672.23

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Solution

The fourth proportional to 2,851.39, 3,933.88 and 1,672.23 is: 2,307.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.39 : 3,933.88 = 1,672.23 : x
  2. Step 2: Convert to fraction form
    2,851.39/3,933.88 = 1,672.23/x
  3. Step 3: Cross multiply
    2,851.39x = 3,933.88 × 1,672.23
  4. Step 4: Simplify right side
    2,851.39x = 6,578,352.15
  5. Step 5: Solve for x
    x = 6,578,352.15/2,851.39
  6. Step 6: Final answer
    x = 2,307.07

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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.