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Finding the Fourth Proportional to 6,140, 8,473.26 and 3,345.56

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Solution

The fourth proportional to 6,140, 8,473.26 and 3,345.56 is: 4,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140 : 8,473.26 = 3,345.56 : x
  2. Step 2: Convert to fraction form
    6,140/8,473.26 = 3,345.56/x
  3. Step 3: Cross multiply
    6,140x = 8,473.26 × 3,345.56
  4. Step 4: Simplify right side
    6,140x = 28,347,799.73
  5. Step 5: Solve for x
    x = 28,347,799.73/6,140
  6. Step 6: Final answer
    x = 4,616.91

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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.