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Finding the Fourth Proportional to 4,614.78, 6,918.06 and 1,692.40

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Solution

The fourth proportional to 4,614.78, 6,918.06 and 1,692.40 is: 2,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,614.78 : 6,918.06 = 1,692.40 : x
  2. Step 2: Convert to fraction form
    4,614.78/6,918.06 = 1,692.40/x
  3. Step 3: Cross multiply
    4,614.78x = 6,918.06 × 1,692.40
  4. Step 4: Simplify right side
    4,614.78x = 11,708,124.74
  5. Step 5: Solve for x
    x = 11,708,124.74/4,614.78
  6. Step 6: Final answer
    x = 2,537.09

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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.