Home / 5,425.02-7,485.18-3,156.73

Finding the Fourth Proportional to 5,425.02, 7,485.18 and 3,156.73

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Solution

The fourth proportional to 5,425.02, 7,485.18 and 3,156.73 is: 4,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.02 : 7,485.18 = 3,156.73 : x
  2. Step 2: Convert to fraction form
    5,425.02/7,485.18 = 3,156.73/x
  3. Step 3: Cross multiply
    5,425.02x = 7,485.18 × 3,156.73
  4. Step 4: Simplify right side
    5,425.02x = 23,628,715.08
  5. Step 5: Solve for x
    x = 23,628,715.08/5,425.02
  6. Step 6: Final answer
    x = 4,355.51

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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.