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Finding the Fourth Proportional to 2,093.56, 2,890.18 and 1,620.40

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Solution

The fourth proportional to 2,093.56, 2,890.18 and 1,620.40 is: 2,236.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.56 : 2,890.18 = 1,620.40 : x
  2. Step 2: Convert to fraction form
    2,093.56/2,890.18 = 1,620.40/x
  3. Step 3: Cross multiply
    2,093.56x = 2,890.18 × 1,620.40
  4. Step 4: Simplify right side
    2,093.56x = 4,683,247.67
  5. Step 5: Solve for x
    x = 4,683,247.67/2,093.56
  6. Step 6: Final answer
    x = 2,236.98

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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.