Home / 3,075.07-4,238.49-2,177.66

Finding the Fourth Proportional to 3,075.07, 4,238.49 and 2,177.66

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Solution

The fourth proportional to 3,075.07, 4,238.49 and 2,177.66 is: 3,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.07 : 4,238.49 = 2,177.66 : x
  2. Step 2: Convert to fraction form
    3,075.07/4,238.49 = 2,177.66/x
  3. Step 3: Cross multiply
    3,075.07x = 4,238.49 × 2,177.66
  4. Step 4: Simplify right side
    3,075.07x = 9,229,987.79
  5. Step 5: Solve for x
    x = 9,229,987.79/3,075.07
  6. Step 6: Final answer
    x = 3,001.55

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1.5x scale

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.