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Finding the Fourth Proportional to 2,415.63, 3,333.74 and 1,353.50

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Solution

The fourth proportional to 2,415.63, 3,333.74 and 1,353.50 is: 1,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.63 : 3,333.74 = 1,353.50 : x
  2. Step 2: Convert to fraction form
    2,415.63/3,333.74 = 1,353.50/x
  3. Step 3: Cross multiply
    2,415.63x = 3,333.74 × 1,353.50
  4. Step 4: Simplify right side
    2,415.63x = 4,512,217.09
  5. Step 5: Solve for x
    x = 4,512,217.09/2,415.63
  6. Step 6: Final answer
    x = 1,867.93

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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.