Home / 2,011.79-3,016.40-1,190.31

Finding the Fourth Proportional to 2,011.79, 3,016.40 and 1,190.31

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Solution

The fourth proportional to 2,011.79, 3,016.40 and 1,190.31 is: 1,784.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.79 : 3,016.40 = 1,190.31 : x
  2. Step 2: Convert to fraction form
    2,011.79/3,016.40 = 1,190.31/x
  3. Step 3: Cross multiply
    2,011.79x = 3,016.40 × 1,190.31
  4. Step 4: Simplify right side
    2,011.79x = 3,590,445.13
  5. Step 5: Solve for x
    x = 3,590,445.13/2,011.79
  6. Step 6: Final answer
    x = 1,784.71

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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.