Home / 2,075.24-2,863.70-1,289

Finding the Fourth Proportional to 2,075.24, 2,863.70 and 1,289

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Solution

The fourth proportional to 2,075.24, 2,863.70 and 1,289 is: 1,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.24 : 2,863.70 = 1,289 : x
  2. Step 2: Convert to fraction form
    2,075.24/2,863.70 = 1,289/x
  3. Step 3: Cross multiply
    2,075.24x = 2,863.70 × 1,289
  4. Step 4: Simplify right side
    2,075.24x = 3,691,309.30
  5. Step 5: Solve for x
    x = 3,691,309.30/2,075.24
  6. Step 6: Final answer
    x = 1,778.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.