Home / 3,195.48-4,409.64-1,779.24

Finding the Fourth Proportional to 3,195.48, 4,409.64 and 1,779.24

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Solution

The fourth proportional to 3,195.48, 4,409.64 and 1,779.24 is: 2,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.48 : 4,409.64 = 1,779.24 : x
  2. Step 2: Convert to fraction form
    3,195.48/4,409.64 = 1,779.24/x
  3. Step 3: Cross multiply
    3,195.48x = 4,409.64 × 1,779.24
  4. Step 4: Simplify right side
    3,195.48x = 7,845,807.87
  5. Step 5: Solve for x
    x = 7,845,807.87/3,195.48
  6. Step 6: Final answer
    x = 2,455.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.