Home / 2,485.60-3,728.40-2,023.90

Finding the Fourth Proportional to 2,485.60, 3,728.40 and 2,023.90

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Solution

The fourth proportional to 2,485.60, 3,728.40 and 2,023.90 is: 3,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.60 : 3,728.40 = 2,023.90 : x
  2. Step 2: Convert to fraction form
    2,485.60/3,728.40 = 2,023.90/x
  3. Step 3: Cross multiply
    2,485.60x = 3,728.40 × 2,023.90
  4. Step 4: Simplify right side
    2,485.60x = 7,545,908.76
  5. Step 5: Solve for x
    x = 7,545,908.76/2,485.60
  6. Step 6: Final answer
    x = 3,035.85

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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.