Home / 2,586.90-3,570-1,467.78

Finding the Fourth Proportional to 2,586.90, 3,570 and 1,467.78

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Solution

The fourth proportional to 2,586.90, 3,570 and 1,467.78 is: 2,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.90 : 3,570 = 1,467.78 : x
  2. Step 2: Convert to fraction form
    2,586.90/3,570 = 1,467.78/x
  3. Step 3: Cross multiply
    2,586.90x = 3,570 × 1,467.78
  4. Step 4: Simplify right side
    2,586.90x = 5,239,974.60
  5. Step 5: Solve for x
    x = 5,239,974.60/2,586.90
  6. Step 6: Final answer
    x = 2,025.58

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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.