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Finding the Fourth Proportional to 6,459.66, 8,913.87 and 3,941.55

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Solution

The fourth proportional to 6,459.66, 8,913.87 and 3,941.55 is: 5,439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.66 : 8,913.87 = 3,941.55 : x
  2. Step 2: Convert to fraction form
    6,459.66/8,913.87 = 3,941.55/x
  3. Step 3: Cross multiply
    6,459.66x = 8,913.87 × 3,941.55
  4. Step 4: Simplify right side
    6,459.66x = 35,134,464.30
  5. Step 5: Solve for x
    x = 35,134,464.30/6,459.66
  6. Step 6: Final answer
    x = 5,439.06

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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.