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Finding the Fourth Proportional to 6,454.88, 8,907.60 and 3,622.40

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Solution

The fourth proportional to 6,454.88, 8,907.60 and 3,622.40 is: 4,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.88 : 8,907.60 = 3,622.40 : x
  2. Step 2: Convert to fraction form
    6,454.88/8,907.60 = 3,622.40/x
  3. Step 3: Cross multiply
    6,454.88x = 8,907.60 × 3,622.40
  4. Step 4: Simplify right side
    6,454.88x = 32,266,890.24
  5. Step 5: Solve for x
    x = 32,266,890.24/6,454.88
  6. Step 6: Final answer
    x = 4,998.84

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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.