Home / 2,130.30-3,178.34-1,896.41

Finding the Fourth Proportional to 2,130.30, 3,178.34 and 1,896.41

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Solution

The fourth proportional to 2,130.30, 3,178.34 and 1,896.41 is: 2,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.30 : 3,178.34 = 1,896.41 : x
  2. Step 2: Convert to fraction form
    2,130.30/3,178.34 = 1,896.41/x
  3. Step 3: Cross multiply
    2,130.30x = 3,178.34 × 1,896.41
  4. Step 4: Simplify right side
    2,130.30x = 6,027,441.33
  5. Step 5: Solve for x
    x = 6,027,441.33/2,130.30
  6. Step 6: Final answer
    x = 2,829.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.