Home / 7,739.55-10,680.39-4,382.55

Finding the Fourth Proportional to 7,739.55, 10,680.39 and 4,382.55

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Solution

The fourth proportional to 7,739.55, 10,680.39 and 4,382.55 is: 6,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.55 : 10,680.39 = 4,382.55 : x
  2. Step 2: Convert to fraction form
    7,739.55/10,680.39 = 4,382.55/x
  3. Step 3: Cross multiply
    7,739.55x = 10,680.39 × 4,382.55
  4. Step 4: Simplify right side
    7,739.55x = 46,807,343.19
  5. Step 5: Solve for x
    x = 46,807,343.19/7,739.55
  6. Step 6: Final answer
    x = 6,047.81

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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.