Home / 3,090.34-4,636.27-899.09

Finding the Fourth Proportional to 3,090.34, 4,636.27 and 899.09

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Solution

The fourth proportional to 3,090.34, 4,636.27 and 899.09 is: 1,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.34 : 4,636.27 = 899.09 : x
  2. Step 2: Convert to fraction form
    3,090.34/4,636.27 = 899.09/x
  3. Step 3: Cross multiply
    3,090.34x = 4,636.27 × 899.09
  4. Step 4: Simplify right side
    3,090.34x = 4,168,419.32
  5. Step 5: Solve for x
    x = 4,168,419.32/3,090.34
  6. Step 6: Final answer
    x = 1,348.85

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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.