Home / 2,728.40-4,094.72-1,803.65

Finding the Fourth Proportional to 2,728.40, 4,094.72 and 1,803.65

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Solution

The fourth proportional to 2,728.40, 4,094.72 and 1,803.65 is: 2,706.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.40 : 4,094.72 = 1,803.65 : x
  2. Step 2: Convert to fraction form
    2,728.40/4,094.72 = 1,803.65/x
  3. Step 3: Cross multiply
    2,728.40x = 4,094.72 × 1,803.65
  4. Step 4: Simplify right side
    2,728.40x = 7,385,432.71
  5. Step 5: Solve for x
    x = 7,385,432.71/2,728.40
  6. Step 6: Final answer
    x = 2,706.87

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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.