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Finding the Fourth Proportional to 4,260.98, 6,389.04 and 1,662.50

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Solution

The fourth proportional to 4,260.98, 6,389.04 and 1,662.50 is: 2,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.98 : 6,389.04 = 1,662.50 : x
  2. Step 2: Convert to fraction form
    4,260.98/6,389.04 = 1,662.50/x
  3. Step 3: Cross multiply
    4,260.98x = 6,389.04 × 1,662.50
  4. Step 4: Simplify right side
    4,260.98x = 10,621,779
  5. Step 5: Solve for x
    x = 10,621,779/4,260.98
  6. Step 6: Final answer
    x = 2,492.80

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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.