Home / 2,868.28-4,301.86-1,307.85

Finding the Fourth Proportional to 2,868.28, 4,301.86 and 1,307.85

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Solution

The fourth proportional to 2,868.28, 4,301.86 and 1,307.85 is: 1,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.28 : 4,301.86 = 1,307.85 : x
  2. Step 2: Convert to fraction form
    2,868.28/4,301.86 = 1,307.85/x
  3. Step 3: Cross multiply
    2,868.28x = 4,301.86 × 1,307.85
  4. Step 4: Simplify right side
    2,868.28x = 5,626,187.60
  5. Step 5: Solve for x
    x = 5,626,187.60/2,868.28
  6. Step 6: Final answer
    x = 1,961.52

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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.