Home / 3,389.90-5,080.75-1,745.55

Finding the Fourth Proportional to 3,389.90, 5,080.75 and 1,745.55

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Solution

The fourth proportional to 3,389.90, 5,080.75 and 1,745.55 is: 2,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.90 : 5,080.75 = 1,745.55 : x
  2. Step 2: Convert to fraction form
    3,389.90/5,080.75 = 1,745.55/x
  3. Step 3: Cross multiply
    3,389.90x = 5,080.75 × 1,745.55
  4. Step 4: Simplify right side
    3,389.90x = 8,868,703.71
  5. Step 5: Solve for x
    x = 8,868,703.71/3,389.90
  6. Step 6: Final answer
    x = 2,616.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.