Home / 3,390.88-4,675.68-2,681.44

Finding the Fourth Proportional to 3,390.88, 4,675.68 and 2,681.44

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Solution

The fourth proportional to 3,390.88, 4,675.68 and 2,681.44 is: 3,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.88 : 4,675.68 = 2,681.44 : x
  2. Step 2: Convert to fraction form
    3,390.88/4,675.68 = 2,681.44/x
  3. Step 3: Cross multiply
    3,390.88x = 4,675.68 × 2,681.44
  4. Step 4: Simplify right side
    3,390.88x = 12,537,555.38
  5. Step 5: Solve for x
    x = 12,537,555.38/3,390.88
  6. Step 6: Final answer
    x = 3,697.43

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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.