Home / 5,240.19-7,855.43-2,772.93

Finding the Fourth Proportional to 5,240.19, 7,855.43 and 2,772.93

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Solution

The fourth proportional to 5,240.19, 7,855.43 and 2,772.93 is: 4,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.19 : 7,855.43 = 2,772.93 : x
  2. Step 2: Convert to fraction form
    5,240.19/7,855.43 = 2,772.93/x
  3. Step 3: Cross multiply
    5,240.19x = 7,855.43 × 2,772.93
  4. Step 4: Simplify right side
    5,240.19x = 21,782,543.65
  5. Step 5: Solve for x
    x = 21,782,543.65/5,240.19
  6. Step 6: Final answer
    x = 4,156.82

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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.