Home / 1,776.17-2,664.21-543.59

Finding the Fourth Proportional to 1,776.17, 2,664.21 and 543.59

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Solution

The fourth proportional to 1,776.17, 2,664.21 and 543.59 is: 815.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.17 : 2,664.21 = 543.59 : x
  2. Step 2: Convert to fraction form
    1,776.17/2,664.21 = 543.59/x
  3. Step 3: Cross multiply
    1,776.17x = 2,664.21 × 543.59
  4. Step 4: Simplify right side
    1,776.17x = 1,448,235.65
  5. Step 5: Solve for x
    x = 1,448,235.65/1,776.17
  6. Step 6: Final answer
    x = 815.37

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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.