Home / 3,075.40-4,233.36-2,681.74

Finding the Fourth Proportional to 3,075.40, 4,233.36 and 2,681.74

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Solution

The fourth proportional to 3,075.40, 4,233.36 and 2,681.74 is: 3,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.40 : 4,233.36 = 2,681.74 : x
  2. Step 2: Convert to fraction form
    3,075.40/4,233.36 = 2,681.74/x
  3. Step 3: Cross multiply
    3,075.40x = 4,233.36 × 2,681.74
  4. Step 4: Simplify right side
    3,075.40x = 11,352,786.19
  5. Step 5: Solve for x
    x = 11,352,786.19/3,075.40
  6. Step 6: Final answer
    x = 3,691.48

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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.