Home / 2,769.18-3,821.81-1,590.22

Finding the Fourth Proportional to 2,769.18, 3,821.81 and 1,590.22

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Solution

The fourth proportional to 2,769.18, 3,821.81 and 1,590.22 is: 2,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.18 : 3,821.81 = 1,590.22 : x
  2. Step 2: Convert to fraction form
    2,769.18/3,821.81 = 1,590.22/x
  3. Step 3: Cross multiply
    2,769.18x = 3,821.81 × 1,590.22
  4. Step 4: Simplify right side
    2,769.18x = 6,077,518.70
  5. Step 5: Solve for x
    x = 6,077,518.70/2,769.18
  6. Step 6: Final answer
    x = 2,194.70

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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.