Home / 3,155.79-4,354.97-1,830.26

Finding the Fourth Proportional to 3,155.79, 4,354.97 and 1,830.26

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Solution

The fourth proportional to 3,155.79, 4,354.97 and 1,830.26 is: 2,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.79 : 4,354.97 = 1,830.26 : x
  2. Step 2: Convert to fraction form
    3,155.79/4,354.97 = 1,830.26/x
  3. Step 3: Cross multiply
    3,155.79x = 4,354.97 × 1,830.26
  4. Step 4: Simplify right side
    3,155.79x = 7,970,744.57
  5. Step 5: Solve for x
    x = 7,970,744.57/3,155.79
  6. Step 6: Final answer
    x = 2,525.75

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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.