Home / 2,879.34-4,311.30-1,645.05

Finding the Fourth Proportional to 2,879.34, 4,311.30 and 1,645.05

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Solution

The fourth proportional to 2,879.34, 4,311.30 and 1,645.05 is: 2,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.34 : 4,311.30 = 1,645.05 : x
  2. Step 2: Convert to fraction form
    2,879.34/4,311.30 = 1,645.05/x
  3. Step 3: Cross multiply
    2,879.34x = 4,311.30 × 1,645.05
  4. Step 4: Simplify right side
    2,879.34x = 7,092,282.51
  5. Step 5: Solve for x
    x = 7,092,282.51/2,879.34
  6. Step 6: Final answer
    x = 2,463.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.