Home / 2,586.25-3,881-1,491.13

Finding the Fourth Proportional to 2,586.25, 3,881 and 1,491.13

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Solution

The fourth proportional to 2,586.25, 3,881 and 1,491.13 is: 2,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.25 : 3,881 = 1,491.13 : x
  2. Step 2: Convert to fraction form
    2,586.25/3,881 = 1,491.13/x
  3. Step 3: Cross multiply
    2,586.25x = 3,881 × 1,491.13
  4. Step 4: Simplify right side
    2,586.25x = 5,787,075.53
  5. Step 5: Solve for x
    x = 5,787,075.53/2,586.25
  6. Step 6: Final answer
    x = 2,237.63

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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.