Home / 3,090.18-4,628.64-2,873.78

Finding the Fourth Proportional to 3,090.18, 4,628.64 and 2,873.78

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Solution

The fourth proportional to 3,090.18, 4,628.64 and 2,873.78 is: 4,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.18 : 4,628.64 = 2,873.78 : x
  2. Step 2: Convert to fraction form
    3,090.18/4,628.64 = 2,873.78/x
  3. Step 3: Cross multiply
    3,090.18x = 4,628.64 × 2,873.78
  4. Step 4: Simplify right side
    3,090.18x = 13,301,698.05
  5. Step 5: Solve for x
    x = 13,301,698.05/3,090.18
  6. Step 6: Final answer
    x = 4,304.50

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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.