Home / 2,075.80-2,866.44-1,291.18

Finding the Fourth Proportional to 2,075.80, 2,866.44 and 1,291.18

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Solution

The fourth proportional to 2,075.80, 2,866.44 and 1,291.18 is: 1,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.80 : 2,866.44 = 1,291.18 : x
  2. Step 2: Convert to fraction form
    2,075.80/2,866.44 = 1,291.18/x
  3. Step 3: Cross multiply
    2,075.80x = 2,866.44 × 1,291.18
  4. Step 4: Simplify right side
    2,075.80x = 3,701,090.00
  5. Step 5: Solve for x
    x = 3,701,090.00/2,075.80
  6. Step 6: Final answer
    x = 1,782.97

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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.