Home / 1,889.12-2,828.54-1,779.96

Finding the Fourth Proportional to 1,889.12, 2,828.54 and 1,779.96

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Solution

The fourth proportional to 1,889.12, 2,828.54 and 1,779.96 is: 2,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.12 : 2,828.54 = 1,779.96 : x
  2. Step 2: Convert to fraction form
    1,889.12/2,828.54 = 1,779.96/x
  3. Step 3: Cross multiply
    1,889.12x = 2,828.54 × 1,779.96
  4. Step 4: Simplify right side
    1,889.12x = 5,034,688.06
  5. Step 5: Solve for x
    x = 5,034,688.06/1,889.12
  6. Step 6: Final answer
    x = 2,665.10

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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.