Home / 6,420.34-9,639.33-3,302.92

Finding the Fourth Proportional to 6,420.34, 9,639.33 and 3,302.92

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Solution

The fourth proportional to 6,420.34, 9,639.33 and 3,302.92 is: 4,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.34 : 9,639.33 = 3,302.92 : x
  2. Step 2: Convert to fraction form
    6,420.34/9,639.33 = 3,302.92/x
  3. Step 3: Cross multiply
    6,420.34x = 9,639.33 × 3,302.92
  4. Step 4: Simplify right side
    6,420.34x = 31,837,935.84
  5. Step 5: Solve for x
    x = 31,837,935.84/6,420.34
  6. Step 6: Final answer
    x = 4,958.92

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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.