Home / 3,145.10-4,716.36-1,683.99

Finding the Fourth Proportional to 3,145.10, 4,716.36 and 1,683.99

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Solution

The fourth proportional to 3,145.10, 4,716.36 and 1,683.99 is: 2,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.10 : 4,716.36 = 1,683.99 : x
  2. Step 2: Convert to fraction form
    3,145.10/4,716.36 = 1,683.99/x
  3. Step 3: Cross multiply
    3,145.10x = 4,716.36 × 1,683.99
  4. Step 4: Simplify right side
    3,145.10x = 7,942,303.08
  5. Step 5: Solve for x
    x = 7,942,303.08/3,145.10
  6. Step 6: Final answer
    x = 2,525.30

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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.