Home / 3,423.16-5,135.55-1,779.33

Finding the Fourth Proportional to 3,423.16, 5,135.55 and 1,779.33

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Solution

The fourth proportional to 3,423.16, 5,135.55 and 1,779.33 is: 2,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.16 : 5,135.55 = 1,779.33 : x
  2. Step 2: Convert to fraction form
    3,423.16/5,135.55 = 1,779.33/x
  3. Step 3: Cross multiply
    3,423.16x = 5,135.55 × 1,779.33
  4. Step 4: Simplify right side
    3,423.16x = 9,137,838.18
  5. Step 5: Solve for x
    x = 9,137,838.18/3,423.16
  6. Step 6: Final answer
    x = 2,669.42

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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.