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Finding the Fourth Proportional to 1,415.83, 2,123.04 and 582.73

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Solution

The fourth proportional to 1,415.83, 2,123.04 and 582.73 is: 873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.83 : 2,123.04 = 582.73 : x
  2. Step 2: Convert to fraction form
    1,415.83/2,123.04 = 582.73/x
  3. Step 3: Cross multiply
    1,415.83x = 2,123.04 × 582.73
  4. Step 4: Simplify right side
    1,415.83x = 1,237,159.10
  5. Step 5: Solve for x
    x = 1,237,159.10/1,415.83
  6. Step 6: Final answer
    x = 873.80

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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.