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Finding the Fourth Proportional to 6,379.32, 9,570.48 and 1,936.92

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Solution

The fourth proportional to 6,379.32, 9,570.48 and 1,936.92 is: 2,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.32 : 9,570.48 = 1,936.92 : x
  2. Step 2: Convert to fraction form
    6,379.32/9,570.48 = 1,936.92/x
  3. Step 3: Cross multiply
    6,379.32x = 9,570.48 × 1,936.92
  4. Step 4: Simplify right side
    6,379.32x = 18,537,254.12
  5. Step 5: Solve for x
    x = 18,537,254.12/6,379.32
  6. Step 6: Final answer
    x = 2,905.84

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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.