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Finding the Fourth Proportional to 1,395.45, 2,077.22 and 1,374.68

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Solution

The fourth proportional to 1,395.45, 2,077.22 and 1,374.68 is: 2,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.45 : 2,077.22 = 1,374.68 : x
  2. Step 2: Convert to fraction form
    1,395.45/2,077.22 = 1,374.68/x
  3. Step 3: Cross multiply
    1,395.45x = 2,077.22 × 1,374.68
  4. Step 4: Simplify right side
    1,395.45x = 2,855,521.42
  5. Step 5: Solve for x
    x = 2,855,521.42/1,395.45
  6. Step 6: Final answer
    x = 2,046.31

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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.