Home / 3,090.13-4,635.80-1,358.75

Finding the Fourth Proportional to 3,090.13, 4,635.80 and 1,358.75

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Solution

The fourth proportional to 3,090.13, 4,635.80 and 1,358.75 is: 2,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.13 : 4,635.80 = 1,358.75 : x
  2. Step 2: Convert to fraction form
    3,090.13/4,635.80 = 1,358.75/x
  3. Step 3: Cross multiply
    3,090.13x = 4,635.80 × 1,358.75
  4. Step 4: Simplify right side
    3,090.13x = 6,298,893.25
  5. Step 5: Solve for x
    x = 6,298,893.25/3,090.13
  6. Step 6: Final answer
    x = 2,038.39

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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.