Home / 2,114.30-2,918.67-1,396.46

Finding the Fourth Proportional to 2,114.30, 2,918.67 and 1,396.46

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Solution

The fourth proportional to 2,114.30, 2,918.67 and 1,396.46 is: 1,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.30 : 2,918.67 = 1,396.46 : x
  2. Step 2: Convert to fraction form
    2,114.30/2,918.67 = 1,396.46/x
  3. Step 3: Cross multiply
    2,114.30x = 2,918.67 × 1,396.46
  4. Step 4: Simplify right side
    2,114.30x = 4,075,805.91
  5. Step 5: Solve for x
    x = 4,075,805.91/2,114.30
  6. Step 6: Final answer
    x = 1,927.73

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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.