Home / 1,677.17-2,515.77-581.57

Finding the Fourth Proportional to 1,677.17, 2,515.77 and 581.57

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Solution

The fourth proportional to 1,677.17, 2,515.77 and 581.57 is: 872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.17 : 2,515.77 = 581.57 : x
  2. Step 2: Convert to fraction form
    1,677.17/2,515.77 = 581.57/x
  3. Step 3: Cross multiply
    1,677.17x = 2,515.77 × 581.57
  4. Step 4: Simplify right side
    1,677.17x = 1,463,083.78
  5. Step 5: Solve for x
    x = 1,463,083.78/1,677.17
  6. Step 6: Final answer
    x = 872.36

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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.