Home / 2,110.70-2,907.15-1,829.90

Finding the Fourth Proportional to 2,110.70, 2,907.15 and 1,829.90

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Solution

The fourth proportional to 2,110.70, 2,907.15 and 1,829.90 is: 2,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.70 : 2,907.15 = 1,829.90 : x
  2. Step 2: Convert to fraction form
    2,110.70/2,907.15 = 1,829.90/x
  3. Step 3: Cross multiply
    2,110.70x = 2,907.15 × 1,829.90
  4. Step 4: Simplify right side
    2,110.70x = 5,319,793.79
  5. Step 5: Solve for x
    x = 5,319,793.79/2,110.70
  6. Step 6: Final answer
    x = 2,520.39

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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.