Home / 3,155.58-4,354.70-1,830.05

Finding the Fourth Proportional to 3,155.58, 4,354.70 and 1,830.05

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Solution

The fourth proportional to 3,155.58, 4,354.70 and 1,830.05 is: 2,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.58 : 4,354.70 = 1,830.05 : x
  2. Step 2: Convert to fraction form
    3,155.58/4,354.70 = 1,830.05/x
  3. Step 3: Cross multiply
    3,155.58x = 4,354.70 × 1,830.05
  4. Step 4: Simplify right side
    3,155.58x = 7,969,318.74
  5. Step 5: Solve for x
    x = 7,969,318.74/3,155.58
  6. Step 6: Final answer
    x = 2,525.47

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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.