Home / 1,821.67-2,513.81-1,075.36

Finding the Fourth Proportional to 1,821.67, 2,513.81 and 1,075.36

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Solution

The fourth proportional to 1,821.67, 2,513.81 and 1,075.36 is: 1,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.67 : 2,513.81 = 1,075.36 : x
  2. Step 2: Convert to fraction form
    1,821.67/2,513.81 = 1,075.36/x
  3. Step 3: Cross multiply
    1,821.67x = 2,513.81 × 1,075.36
  4. Step 4: Simplify right side
    1,821.67x = 2,703,239.95
  5. Step 5: Solve for x
    x = 2,703,239.95/1,821.67
  6. Step 6: Final answer
    x = 1,483.94

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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.