Home / 3,407.40-5,114.30-1,765.08

Finding the Fourth Proportional to 3,407.40, 5,114.30 and 1,765.08

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Solution

The fourth proportional to 3,407.40, 5,114.30 and 1,765.08 is: 2,649.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.40 : 5,114.30 = 1,765.08 : x
  2. Step 2: Convert to fraction form
    3,407.40/5,114.30 = 1,765.08/x
  3. Step 3: Cross multiply
    3,407.40x = 5,114.30 × 1,765.08
  4. Step 4: Simplify right side
    3,407.40x = 9,027,148.64
  5. Step 5: Solve for x
    x = 9,027,148.64/3,407.40
  6. Step 6: Final answer
    x = 2,649.28

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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.