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Finding the Fourth Proportional to 6,464.59, 8,895.48 and 6,271.90

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Solution

The fourth proportional to 6,464.59, 8,895.48 and 6,271.90 is: 8,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.59 : 8,895.48 = 6,271.90 : x
  2. Step 2: Convert to fraction form
    6,464.59/8,895.48 = 6,271.90/x
  3. Step 3: Cross multiply
    6,464.59x = 8,895.48 × 6,271.90
  4. Step 4: Simplify right side
    6,464.59x = 55,791,561.01
  5. Step 5: Solve for x
    x = 55,791,561.01/6,464.59
  6. Step 6: Final answer
    x = 8,630.33

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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.