Home / 3,090.89-4,263.52-2,028.74

Finding the Fourth Proportional to 3,090.89, 4,263.52 and 2,028.74

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Solution

The fourth proportional to 3,090.89, 4,263.52 and 2,028.74 is: 2,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.89 : 4,263.52 = 2,028.74 : x
  2. Step 2: Convert to fraction form
    3,090.89/4,263.52 = 2,028.74/x
  3. Step 3: Cross multiply
    3,090.89x = 4,263.52 × 2,028.74
  4. Step 4: Simplify right side
    3,090.89x = 8,649,542.10
  5. Step 5: Solve for x
    x = 8,649,542.10/3,090.89
  6. Step 6: Final answer
    x = 2,798.40

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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.