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Finding the Fourth Proportional to 1,582.26, 2,374.08 and 658.05

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Solution

The fourth proportional to 1,582.26, 2,374.08 and 658.05 is: 987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.26 : 2,374.08 = 658.05 : x
  2. Step 2: Convert to fraction form
    1,582.26/2,374.08 = 658.05/x
  3. Step 3: Cross multiply
    1,582.26x = 2,374.08 × 658.05
  4. Step 4: Simplify right side
    1,582.26x = 1,562,263.34
  5. Step 5: Solve for x
    x = 1,562,263.34/1,582.26
  6. Step 6: Final answer
    x = 987.36

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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.