Home / 7,739.60-10,678.87-4,381.94

Finding the Fourth Proportional to 7,739.60, 10,678.87 and 4,381.94

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Solution

The fourth proportional to 7,739.60, 10,678.87 and 4,381.94 is: 6,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.60 : 10,678.87 = 4,381.94 : x
  2. Step 2: Convert to fraction form
    7,739.60/10,678.87 = 4,381.94/x
  3. Step 3: Cross multiply
    7,739.60x = 10,678.87 × 4,381.94
  4. Step 4: Simplify right side
    7,739.60x = 46,794,167.61
  5. Step 5: Solve for x
    x = 46,794,167.61/7,739.60
  6. Step 6: Final answer
    x = 6,046.07

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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.