Home / 1,395.21-2,093.15-985.14

Finding the Fourth Proportional to 1,395.21, 2,093.15 and 985.14

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Solution

The fourth proportional to 1,395.21, 2,093.15 and 985.14 is: 1,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.21 : 2,093.15 = 985.14 : x
  2. Step 2: Convert to fraction form
    1,395.21/2,093.15 = 985.14/x
  3. Step 3: Cross multiply
    1,395.21x = 2,093.15 × 985.14
  4. Step 4: Simplify right side
    1,395.21x = 2,062,045.79
  5. Step 5: Solve for x
    x = 2,062,045.79/1,395.21
  6. Step 6: Final answer
    x = 1,477.95

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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.