Home / 2,715.42-4,075.56-2,020.44

Finding the Fourth Proportional to 2,715.42, 4,075.56 and 2,020.44

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Solution

The fourth proportional to 2,715.42, 4,075.56 and 2,020.44 is: 3,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.42 : 4,075.56 = 2,020.44 : x
  2. Step 2: Convert to fraction form
    2,715.42/4,075.56 = 2,020.44/x
  3. Step 3: Cross multiply
    2,715.42x = 4,075.56 × 2,020.44
  4. Step 4: Simplify right side
    2,715.42x = 8,234,424.45
  5. Step 5: Solve for x
    x = 8,234,424.45/2,715.42
  6. Step 6: Final answer
    x = 3,032.47

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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.