Home / 7,292.80-10,939.88-4,389.56

Finding the Fourth Proportional to 7,292.80, 10,939.88 and 4,389.56

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Solution

The fourth proportional to 7,292.80, 10,939.88 and 4,389.56 is: 6,584.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.80 : 10,939.88 = 4,389.56 : x
  2. Step 2: Convert to fraction form
    7,292.80/10,939.88 = 4,389.56/x
  3. Step 3: Cross multiply
    7,292.80x = 10,939.88 × 4,389.56
  4. Step 4: Simplify right side
    7,292.80x = 48,021,259.65
  5. Step 5: Solve for x
    x = 48,021,259.65/7,292.80
  6. Step 6: Final answer
    x = 6,584.75

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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.