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Finding the Fourth Proportional to 7,028.70, 9,702.77 and 4,477.56

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Solution

The fourth proportional to 7,028.70, 9,702.77 and 4,477.56 is: 6,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.70 : 9,702.77 = 4,477.56 : x
  2. Step 2: Convert to fraction form
    7,028.70/9,702.77 = 4,477.56/x
  3. Step 3: Cross multiply
    7,028.70x = 9,702.77 × 4,477.56
  4. Step 4: Simplify right side
    7,028.70x = 43,444,712.45
  5. Step 5: Solve for x
    x = 43,444,712.45/7,028.70
  6. Step 6: Final answer
    x = 6,181.05

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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.