Home / 2,210.90-3,314.50-1,515.87

Finding the Fourth Proportional to 2,210.90, 3,314.50 and 1,515.87

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Solution

The fourth proportional to 2,210.90, 3,314.50 and 1,515.87 is: 2,272.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.90 : 3,314.50 = 1,515.87 : x
  2. Step 2: Convert to fraction form
    2,210.90/3,314.50 = 1,515.87/x
  3. Step 3: Cross multiply
    2,210.90x = 3,314.50 × 1,515.87
  4. Step 4: Simplify right side
    2,210.90x = 5,024,355.85
  5. Step 5: Solve for x
    x = 5,024,355.85/2,210.90
  6. Step 6: Final answer
    x = 2,272.54

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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.