Home / 3,424.10-5,131.89-1,779.68

Finding the Fourth Proportional to 3,424.10, 5,131.89 and 1,779.68

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Solution

The fourth proportional to 3,424.10, 5,131.89 and 1,779.68 is: 2,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.10 : 5,131.89 = 1,779.68 : x
  2. Step 2: Convert to fraction form
    3,424.10/5,131.89 = 1,779.68/x
  3. Step 3: Cross multiply
    3,424.10x = 5,131.89 × 1,779.68
  4. Step 4: Simplify right side
    3,424.10x = 9,133,122.00
  5. Step 5: Solve for x
    x = 9,133,122.00/3,424.10
  6. Step 6: Final answer
    x = 2,667.31

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1.5x scale

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.