Home / 2,130.91-3,190.46-1,609.34

Finding the Fourth Proportional to 2,130.91, 3,190.46 and 1,609.34

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Solution

The fourth proportional to 2,130.91, 3,190.46 and 1,609.34 is: 2,409.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.91 : 3,190.46 = 1,609.34 : x
  2. Step 2: Convert to fraction form
    2,130.91/3,190.46 = 1,609.34/x
  3. Step 3: Cross multiply
    2,130.91x = 3,190.46 × 1,609.34
  4. Step 4: Simplify right side
    2,130.91x = 5,134,510.90
  5. Step 5: Solve for x
    x = 5,134,510.90/2,130.91
  6. Step 6: Final answer
    x = 2,409.54

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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.