Home / 2,177.70-3,260.75-1,485.72

Finding the Fourth Proportional to 2,177.70, 3,260.75 and 1,485.72

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Solution

The fourth proportional to 2,177.70, 3,260.75 and 1,485.72 is: 2,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.70 : 3,260.75 = 1,485.72 : x
  2. Step 2: Convert to fraction form
    2,177.70/3,260.75 = 1,485.72/x
  3. Step 3: Cross multiply
    2,177.70x = 3,260.75 × 1,485.72
  4. Step 4: Simplify right side
    2,177.70x = 4,844,561.49
  5. Step 5: Solve for x
    x = 4,844,561.49/2,177.70
  6. Step 6: Final answer
    x = 2,224.62

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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.