Home / 2,867.75-4,300.39-1,307.28

Finding the Fourth Proportional to 2,867.75, 4,300.39 and 1,307.28

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Solution

The fourth proportional to 2,867.75, 4,300.39 and 1,307.28 is: 1,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.75 : 4,300.39 = 1,307.28 : x
  2. Step 2: Convert to fraction form
    2,867.75/4,300.39 = 1,307.28/x
  3. Step 3: Cross multiply
    2,867.75x = 4,300.39 × 1,307.28
  4. Step 4: Simplify right side
    2,867.75x = 5,621,813.84
  5. Step 5: Solve for x
    x = 5,621,813.84/2,867.75
  6. Step 6: Final answer
    x = 1,960.36

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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.