Home / 3,430.98-5,145.44-1,090.89

Finding the Fourth Proportional to 3,430.98, 5,145.44 and 1,090.89

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Solution

The fourth proportional to 3,430.98, 5,145.44 and 1,090.89 is: 1,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.98 : 5,145.44 = 1,090.89 : x
  2. Step 2: Convert to fraction form
    3,430.98/5,145.44 = 1,090.89/x
  3. Step 3: Cross multiply
    3,430.98x = 5,145.44 × 1,090.89
  4. Step 4: Simplify right side
    3,430.98x = 5,613,103.59
  5. Step 5: Solve for x
    x = 5,613,103.59/3,430.98
  6. Step 6: Final answer
    x = 1,636.01

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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.