Home / 5,090.40-7,022.70-2,965.59

Finding the Fourth Proportional to 5,090.40, 7,022.70 and 2,965.59

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Solution

The fourth proportional to 5,090.40, 7,022.70 and 2,965.59 is: 4,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.40 : 7,022.70 = 2,965.59 : x
  2. Step 2: Convert to fraction form
    5,090.40/7,022.70 = 2,965.59/x
  3. Step 3: Cross multiply
    5,090.40x = 7,022.70 × 2,965.59
  4. Step 4: Simplify right side
    5,090.40x = 20,826,448.89
  5. Step 5: Solve for x
    x = 20,826,448.89/5,090.40
  6. Step 6: Final answer
    x = 4,091.32

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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.