Home / 2,101.96-3,159.93-1,490.05

Finding the Fourth Proportional to 2,101.96, 3,159.93 and 1,490.05

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Solution

The fourth proportional to 2,101.96, 3,159.93 and 1,490.05 is: 2,240.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.96 : 3,159.93 = 1,490.05 : x
  2. Step 2: Convert to fraction form
    2,101.96/3,159.93 = 1,490.05/x
  3. Step 3: Cross multiply
    2,101.96x = 3,159.93 × 1,490.05
  4. Step 4: Simplify right side
    2,101.96x = 4,708,453.70
  5. Step 5: Solve for x
    x = 4,708,453.70/2,101.96
  6. Step 6: Final answer
    x = 2,240.03

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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.