Home / 1,821.16-2,512.32-1,074.61

Finding the Fourth Proportional to 1,821.16, 2,512.32 and 1,074.61

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Solution

The fourth proportional to 1,821.16, 2,512.32 and 1,074.61 is: 1,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.16 : 2,512.32 = 1,074.61 : x
  2. Step 2: Convert to fraction form
    1,821.16/2,512.32 = 1,074.61/x
  3. Step 3: Cross multiply
    1,821.16x = 2,512.32 × 1,074.61
  4. Step 4: Simplify right side
    1,821.16x = 2,699,769.35
  5. Step 5: Solve for x
    x = 2,699,769.35/1,821.16
  6. Step 6: Final answer
    x = 1,482.45

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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.