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Finding the Fourth Proportional to 6,471.15, 8,919.43 and 4,580.31

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Solution

The fourth proportional to 6,471.15, 8,919.43 and 4,580.31 is: 6,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,471.15 : 8,919.43 = 4,580.31 : x
  2. Step 2: Convert to fraction form
    6,471.15/8,919.43 = 4,580.31/x
  3. Step 3: Cross multiply
    6,471.15x = 8,919.43 × 4,580.31
  4. Step 4: Simplify right side
    6,471.15x = 40,853,743.58
  5. Step 5: Solve for x
    x = 40,853,743.58/6,471.15
  6. Step 6: Final answer
    x = 6,313.21

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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.