Home / 3,165.36-4,748.64-1,217.40

Finding the Fourth Proportional to 3,165.36, 4,748.64 and 1,217.40

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Solution

The fourth proportional to 3,165.36, 4,748.64 and 1,217.40 is: 1,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.36 : 4,748.64 = 1,217.40 : x
  2. Step 2: Convert to fraction form
    3,165.36/4,748.64 = 1,217.40/x
  3. Step 3: Cross multiply
    3,165.36x = 4,748.64 × 1,217.40
  4. Step 4: Simplify right side
    3,165.36x = 5,780,994.34
  5. Step 5: Solve for x
    x = 5,780,994.34/3,165.36
  6. Step 6: Final answer
    x = 1,826.33

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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.