Home / 2,578.16-3,865.93-1,259.94

Finding the Fourth Proportional to 2,578.16, 3,865.93 and 1,259.94

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Solution

The fourth proportional to 2,578.16, 3,865.93 and 1,259.94 is: 1,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.16 : 3,865.93 = 1,259.94 : x
  2. Step 2: Convert to fraction form
    2,578.16/3,865.93 = 1,259.94/x
  3. Step 3: Cross multiply
    2,578.16x = 3,865.93 × 1,259.94
  4. Step 4: Simplify right side
    2,578.16x = 4,870,829.45
  5. Step 5: Solve for x
    x = 4,870,829.45/2,578.16
  6. Step 6: Final answer
    x = 1,889.27

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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.