Home / 3,408.12-5,112.17-1,068.31

Finding the Fourth Proportional to 3,408.12, 5,112.17 and 1,068.31

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Solution

The fourth proportional to 3,408.12, 5,112.17 and 1,068.31 is: 1,602.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.12 : 5,112.17 = 1,068.31 : x
  2. Step 2: Convert to fraction form
    3,408.12/5,112.17 = 1,068.31/x
  3. Step 3: Cross multiply
    3,408.12x = 5,112.17 × 1,068.31
  4. Step 4: Simplify right side
    3,408.12x = 5,461,356.77
  5. Step 5: Solve for x
    x = 5,461,356.77/3,408.12
  6. Step 6: Final answer
    x = 1,602.46

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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.