Home / 2,690.58-4,031.62-2,075.79

Finding the Fourth Proportional to 2,690.58, 4,031.62 and 2,075.79

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Solution

The fourth proportional to 2,690.58, 4,031.62 and 2,075.79 is: 3,110.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.58 : 4,031.62 = 2,075.79 : x
  2. Step 2: Convert to fraction form
    2,690.58/4,031.62 = 2,075.79/x
  3. Step 3: Cross multiply
    2,690.58x = 4,031.62 × 2,075.79
  4. Step 4: Simplify right side
    2,690.58x = 8,368,806.41
  5. Step 5: Solve for x
    x = 8,368,806.41/2,690.58
  6. Step 6: Final answer
    x = 3,110.41

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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.