Home / 3,430.48-5,144.68-1,090.39

Finding the Fourth Proportional to 3,430.48, 5,144.68 and 1,090.39

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Solution

The fourth proportional to 3,430.48, 5,144.68 and 1,090.39 is: 1,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.48 : 5,144.68 = 1,090.39 : x
  2. Step 2: Convert to fraction form
    3,430.48/5,144.68 = 1,090.39/x
  3. Step 3: Cross multiply
    3,430.48x = 5,144.68 × 1,090.39
  4. Step 4: Simplify right side
    3,430.48x = 5,609,707.63
  5. Step 5: Solve for x
    x = 5,609,707.63/3,430.48
  6. Step 6: Final answer
    x = 1,635.25

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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.