Home / 1,935.20-2,900.37-1,779.68

Finding the Fourth Proportional to 1,935.20, 2,900.37 and 1,779.68

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Solution

The fourth proportional to 1,935.20, 2,900.37 and 1,779.68 is: 2,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.20 : 2,900.37 = 1,779.68 : x
  2. Step 2: Convert to fraction form
    1,935.20/2,900.37 = 1,779.68/x
  3. Step 3: Cross multiply
    1,935.20x = 2,900.37 × 1,779.68
  4. Step 4: Simplify right side
    1,935.20x = 5,161,730.48
  5. Step 5: Solve for x
    x = 5,161,730.48/1,935.20
  6. Step 6: Final answer
    x = 2,667.29

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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.