Home / 2,190.88-3,025.10-1,445.90

Finding the Fourth Proportional to 2,190.88, 3,025.10 and 1,445.90

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Solution

The fourth proportional to 2,190.88, 3,025.10 and 1,445.90 is: 1,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.88 : 3,025.10 = 1,445.90 : x
  2. Step 2: Convert to fraction form
    2,190.88/3,025.10 = 1,445.90/x
  3. Step 3: Cross multiply
    2,190.88x = 3,025.10 × 1,445.90
  4. Step 4: Simplify right side
    2,190.88x = 4,373,984.86
  5. Step 5: Solve for x
    x = 4,373,984.86/2,190.88
  6. Step 6: Final answer
    x = 1,996.45

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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.