Home / 2,090.19-2,877.89-1,591.23

Finding the Fourth Proportional to 2,090.19, 2,877.89 and 1,591.23

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Solution

The fourth proportional to 2,090.19, 2,877.89 and 1,591.23 is: 2,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.19 : 2,877.89 = 1,591.23 : x
  2. Step 2: Convert to fraction form
    2,090.19/2,877.89 = 1,591.23/x
  3. Step 3: Cross multiply
    2,090.19x = 2,877.89 × 1,591.23
  4. Step 4: Simplify right side
    2,090.19x = 4,579,376.95
  5. Step 5: Solve for x
    x = 4,579,376.95/2,090.19
  6. Step 6: Final answer
    x = 2,190.89

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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.