Home / 1,385.38-2,075.64-1,351.36

Finding the Fourth Proportional to 1,385.38, 2,075.64 and 1,351.36

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Solution

The fourth proportional to 1,385.38, 2,075.64 and 1,351.36 is: 2,024.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.38 : 2,075.64 = 1,351.36 : x
  2. Step 2: Convert to fraction form
    1,385.38/2,075.64 = 1,351.36/x
  3. Step 3: Cross multiply
    1,385.38x = 2,075.64 × 1,351.36
  4. Step 4: Simplify right side
    1,385.38x = 2,804,936.87
  5. Step 5: Solve for x
    x = 2,804,936.87/1,385.38
  6. Step 6: Final answer
    x = 2,024.67

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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.