Home / 2,828.10-4,235.31-1,437.78

Finding the Fourth Proportional to 2,828.10, 4,235.31 and 1,437.78

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Solution

The fourth proportional to 2,828.10, 4,235.31 and 1,437.78 is: 2,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.10 : 4,235.31 = 1,437.78 : x
  2. Step 2: Convert to fraction form
    2,828.10/4,235.31 = 1,437.78/x
  3. Step 3: Cross multiply
    2,828.10x = 4,235.31 × 1,437.78
  4. Step 4: Simplify right side
    2,828.10x = 6,089,444.01
  5. Step 5: Solve for x
    x = 6,089,444.01/2,828.10
  6. Step 6: Final answer
    x = 2,153.19

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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.