Home / 7,923.16-10,939.08-4,940.20

Finding the Fourth Proportional to 7,923.16, 10,939.08 and 4,940.20

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Solution

The fourth proportional to 7,923.16, 10,939.08 and 4,940.20 is: 6,820.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.16 : 10,939.08 = 4,940.20 : x
  2. Step 2: Convert to fraction form
    7,923.16/10,939.08 = 4,940.20/x
  3. Step 3: Cross multiply
    7,923.16x = 10,939.08 × 4,940.20
  4. Step 4: Simplify right side
    7,923.16x = 54,041,243.02
  5. Step 5: Solve for x
    x = 54,041,243.02/7,923.16
  6. Step 6: Final answer
    x = 6,820.67

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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.