Home / 2,130.06-3,195.09-1,263.75

Finding the Fourth Proportional to 2,130.06, 3,195.09 and 1,263.75

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Solution

The fourth proportional to 2,130.06, 3,195.09 and 1,263.75 is: 1,895.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.06 : 3,195.09 = 1,263.75 : x
  2. Step 2: Convert to fraction form
    2,130.06/3,195.09 = 1,263.75/x
  3. Step 3: Cross multiply
    2,130.06x = 3,195.09 × 1,263.75
  4. Step 4: Simplify right side
    2,130.06x = 4,037,794.99
  5. Step 5: Solve for x
    x = 4,037,794.99/2,130.06
  6. Step 6: Final answer
    x = 1,895.63

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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.