Home / 1,962.07-2,707.78-1,297.77

Finding the Fourth Proportional to 1,962.07, 2,707.78 and 1,297.77

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Solution

The fourth proportional to 1,962.07, 2,707.78 and 1,297.77 is: 1,791.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.07 : 2,707.78 = 1,297.77 : x
  2. Step 2: Convert to fraction form
    1,962.07/2,707.78 = 1,297.77/x
  3. Step 3: Cross multiply
    1,962.07x = 2,707.78 × 1,297.77
  4. Step 4: Simplify right side
    1,962.07x = 3,514,075.65
  5. Step 5: Solve for x
    x = 3,514,075.65/1,962.07
  6. Step 6: Final answer
    x = 1,791.00

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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.