Home / 4,276.85-6,415.45-1,355.09

Finding the Fourth Proportional to 4,276.85, 6,415.45 and 1,355.09

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Solution

The fourth proportional to 4,276.85, 6,415.45 and 1,355.09 is: 2,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.85 : 6,415.45 = 1,355.09 : x
  2. Step 2: Convert to fraction form
    4,276.85/6,415.45 = 1,355.09/x
  3. Step 3: Cross multiply
    4,276.85x = 6,415.45 × 1,355.09
  4. Step 4: Simplify right side
    4,276.85x = 8,693,476.68
  5. Step 5: Solve for x
    x = 8,693,476.68/4,276.85
  6. Step 6: Final answer
    x = 2,032.68

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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.