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Finding the Fourth Proportional to 1,677.79, 2,516.71 and 582.19

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Solution

The fourth proportional to 1,677.79, 2,516.71 and 582.19 is: 873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.79 : 2,516.71 = 582.19 : x
  2. Step 2: Convert to fraction form
    1,677.79/2,516.71 = 582.19/x
  3. Step 3: Cross multiply
    1,677.79x = 2,516.71 × 582.19
  4. Step 4: Simplify right side
    1,677.79x = 1,465,203.39
  5. Step 5: Solve for x
    x = 1,465,203.39/1,677.79
  6. Step 6: Final answer
    x = 873.29

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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.