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Finding the Fourth Proportional to 4,288.86, 5,918.31 and 2,520.41

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Solution

The fourth proportional to 4,288.86, 5,918.31 and 2,520.41 is: 3,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.86 : 5,918.31 = 2,520.41 : x
  2. Step 2: Convert to fraction form
    4,288.86/5,918.31 = 2,520.41/x
  3. Step 3: Cross multiply
    4,288.86x = 5,918.31 × 2,520.41
  4. Step 4: Simplify right side
    4,288.86x = 14,916,538.12
  5. Step 5: Solve for x
    x = 14,916,538.12/4,288.86
  6. Step 6: Final answer
    x = 3,477.97

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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.