Home / 3,090.72-4,635.36-1,551.36

Finding the Fourth Proportional to 3,090.72, 4,635.36 and 1,551.36

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Solution

The fourth proportional to 3,090.72, 4,635.36 and 1,551.36 is: 2,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.72 : 4,635.36 = 1,551.36 : x
  2. Step 2: Convert to fraction form
    3,090.72/4,635.36 = 1,551.36/x
  3. Step 3: Cross multiply
    3,090.72x = 4,635.36 × 1,551.36
  4. Step 4: Simplify right side
    3,090.72x = 7,191,112.09
  5. Step 5: Solve for x
    x = 7,191,112.09/3,090.72
  6. Step 6: Final answer
    x = 2,326.68

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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.