Home / 6,345.48-8,759.94-3,988.92

Finding the Fourth Proportional to 6,345.48, 8,759.94 and 3,988.92

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Solution

The fourth proportional to 6,345.48, 8,759.94 and 3,988.92 is: 5,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.48 : 8,759.94 = 3,988.92 : x
  2. Step 2: Convert to fraction form
    6,345.48/8,759.94 = 3,988.92/x
  3. Step 3: Cross multiply
    6,345.48x = 8,759.94 × 3,988.92
  4. Step 4: Simplify right side
    6,345.48x = 34,942,699.86
  5. Step 5: Solve for x
    x = 34,942,699.86/6,345.48
  6. Step 6: Final answer
    x = 5,506.71

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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.