Home / 4,145.80-6,205.74-3,165.40

Finding the Fourth Proportional to 4,145.80, 6,205.74 and 3,165.40

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Solution

The fourth proportional to 4,145.80, 6,205.74 and 3,165.40 is: 4,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.80 : 6,205.74 = 3,165.40 : x
  2. Step 2: Convert to fraction form
    4,145.80/6,205.74 = 3,165.40/x
  3. Step 3: Cross multiply
    4,145.80x = 6,205.74 × 3,165.40
  4. Step 4: Simplify right side
    4,145.80x = 19,643,649.40
  5. Step 5: Solve for x
    x = 19,643,649.40/4,145.80
  6. Step 6: Final answer
    x = 4,738.20

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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.