Home / 1,583.20-2,374.83-543.19

Finding the Fourth Proportional to 1,583.20, 2,374.83 and 543.19

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Solution

The fourth proportional to 1,583.20, 2,374.83 and 543.19 is: 814.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.20 : 2,374.83 = 543.19 : x
  2. Step 2: Convert to fraction form
    1,583.20/2,374.83 = 543.19/x
  3. Step 3: Cross multiply
    1,583.20x = 2,374.83 × 543.19
  4. Step 4: Simplify right side
    1,583.20x = 1,289,977.97
  5. Step 5: Solve for x
    x = 1,289,977.97/1,583.20
  6. Step 6: Final answer
    x = 814.79

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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.