Home / 1,412.04-2,108.67-1,396.78

Finding the Fourth Proportional to 1,412.04, 2,108.67 and 1,396.78

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Solution

The fourth proportional to 1,412.04, 2,108.67 and 1,396.78 is: 2,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.04 : 2,108.67 = 1,396.78 : x
  2. Step 2: Convert to fraction form
    1,412.04/2,108.67 = 1,396.78/x
  3. Step 3: Cross multiply
    1,412.04x = 2,108.67 × 1,396.78
  4. Step 4: Simplify right side
    1,412.04x = 2,945,348.08
  5. Step 5: Solve for x
    x = 2,945,348.08/1,412.04
  6. Step 6: Final answer
    x = 2,085.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.