Home / 2,917.88-4,378.49-1,068.75

Finding the Fourth Proportional to 2,917.88, 4,378.49 and 1,068.75

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Solution

The fourth proportional to 2,917.88, 4,378.49 and 1,068.75 is: 1,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.88 : 4,378.49 = 1,068.75 : x
  2. Step 2: Convert to fraction form
    2,917.88/4,378.49 = 1,068.75/x
  3. Step 3: Cross multiply
    2,917.88x = 4,378.49 × 1,068.75
  4. Step 4: Simplify right side
    2,917.88x = 4,679,511.19
  5. Step 5: Solve for x
    x = 4,679,511.19/2,917.88
  6. Step 6: Final answer
    x = 1,603.74

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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.