Home / 2,815.06-4,222.60-1,660

Finding the Fourth Proportional to 2,815.06, 4,222.60 and 1,660

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Solution

The fourth proportional to 2,815.06, 4,222.60 and 1,660 is: 2,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.06 : 4,222.60 = 1,660 : x
  2. Step 2: Convert to fraction form
    2,815.06/4,222.60 = 1,660/x
  3. Step 3: Cross multiply
    2,815.06x = 4,222.60 × 1,660
  4. Step 4: Simplify right side
    2,815.06x = 7,009,516.00
  5. Step 5: Solve for x
    x = 7,009,516.00/2,815.06
  6. Step 6: Final answer
    x = 2,490.01

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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.