Home / 3,155.81-4,355.55-1,829.93

Finding the Fourth Proportional to 3,155.81, 4,355.55 and 1,829.93

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Solution

The fourth proportional to 3,155.81, 4,355.55 and 1,829.93 is: 2,525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.81 : 4,355.55 = 1,829.93 : x
  2. Step 2: Convert to fraction form
    3,155.81/4,355.55 = 1,829.93/x
  3. Step 3: Cross multiply
    3,155.81x = 4,355.55 × 1,829.93
  4. Step 4: Simplify right side
    3,155.81x = 7,970,329.83
  5. Step 5: Solve for x
    x = 7,970,329.83/3,155.81
  6. Step 6: Final answer
    x = 2,525.61

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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.