Home / 2,037.75-2,810.61-1,290.99

Finding the Fourth Proportional to 2,037.75, 2,810.61 and 1,290.99

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Solution

The fourth proportional to 2,037.75, 2,810.61 and 1,290.99 is: 1,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.75 : 2,810.61 = 1,290.99 : x
  2. Step 2: Convert to fraction form
    2,037.75/2,810.61 = 1,290.99/x
  3. Step 3: Cross multiply
    2,037.75x = 2,810.61 × 1,290.99
  4. Step 4: Simplify right side
    2,037.75x = 3,628,469.40
  5. Step 5: Solve for x
    x = 3,628,469.40/2,037.75
  6. Step 6: Final answer
    x = 1,780.63

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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.