Home / 6,421.58-9,628.72-3,826.34

Finding the Fourth Proportional to 6,421.58, 9,628.72 and 3,826.34

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Solution

The fourth proportional to 6,421.58, 9,628.72 and 3,826.34 is: 5,737.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.58 : 9,628.72 = 3,826.34 : x
  2. Step 2: Convert to fraction form
    6,421.58/9,628.72 = 3,826.34/x
  3. Step 3: Cross multiply
    6,421.58x = 9,628.72 × 3,826.34
  4. Step 4: Simplify right side
    6,421.58x = 36,842,689.21
  5. Step 5: Solve for x
    x = 36,842,689.21/6,421.58
  6. Step 6: Final answer
    x = 5,737.33

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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.