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Finding the Fourth Proportional to 7,102.98, 9,801.07 and 4,118.27

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Solution

The fourth proportional to 7,102.98, 9,801.07 and 4,118.27 is: 5,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.98 : 9,801.07 = 4,118.27 : x
  2. Step 2: Convert to fraction form
    7,102.98/9,801.07 = 4,118.27/x
  3. Step 3: Cross multiply
    7,102.98x = 9,801.07 × 4,118.27
  4. Step 4: Simplify right side
    7,102.98x = 40,363,393.25
  5. Step 5: Solve for x
    x = 40,363,393.25/7,102.98
  6. Step 6: Final answer
    x = 5,682.60

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1.5x scale

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.