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Finding the Fourth Proportional to 4,305.57, 6,456.79 and 1,840.54

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Solution

The fourth proportional to 4,305.57, 6,456.79 and 1,840.54 is: 2,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.57 : 6,456.79 = 1,840.54 : x
  2. Step 2: Convert to fraction form
    4,305.57/6,456.79 = 1,840.54/x
  3. Step 3: Cross multiply
    4,305.57x = 6,456.79 × 1,840.54
  4. Step 4: Simplify right side
    4,305.57x = 11,883,980.27
  5. Step 5: Solve for x
    x = 11,883,980.27/4,305.57
  6. Step 6: Final answer
    x = 2,760.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.