Home / 3,155.83-4,354.27-1,897.85

Finding the Fourth Proportional to 3,155.83, 4,354.27 and 1,897.85

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Solution

The fourth proportional to 3,155.83, 4,354.27 and 1,897.85 is: 2,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.83 : 4,354.27 = 1,897.85 : x
  2. Step 2: Convert to fraction form
    3,155.83/4,354.27 = 1,897.85/x
  3. Step 3: Cross multiply
    3,155.83x = 4,354.27 × 1,897.85
  4. Step 4: Simplify right side
    3,155.83x = 8,263,734.29
  5. Step 5: Solve for x
    x = 8,263,734.29/3,155.83
  6. Step 6: Final answer
    x = 2,618.57

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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.