Home / 5,421.73-7,485.21-3,433.99

Finding the Fourth Proportional to 5,421.73, 7,485.21 and 3,433.99

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Solution

The fourth proportional to 5,421.73, 7,485.21 and 3,433.99 is: 4,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.73 : 7,485.21 = 3,433.99 : x
  2. Step 2: Convert to fraction form
    5,421.73/7,485.21 = 3,433.99/x
  3. Step 3: Cross multiply
    5,421.73x = 7,485.21 × 3,433.99
  4. Step 4: Simplify right side
    5,421.73x = 25,704,136.29
  5. Step 5: Solve for x
    x = 25,704,136.29/5,421.73
  6. Step 6: Final answer
    x = 4,740.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.