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Finding the Fourth Proportional to 6,454.90, 8,907.87 and 3,622.90

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Solution

The fourth proportional to 6,454.90, 8,907.87 and 3,622.90 is: 4,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.90 : 8,907.87 = 3,622.90 : x
  2. Step 2: Convert to fraction form
    6,454.90/8,907.87 = 3,622.90/x
  3. Step 3: Cross multiply
    6,454.90x = 8,907.87 × 3,622.90
  4. Step 4: Simplify right side
    6,454.90x = 32,272,322.22
  5. Step 5: Solve for x
    x = 32,272,322.22/6,454.90
  6. Step 6: Final answer
    x = 4,999.66

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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.