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Finding the Fourth Proportional to 3,582.48, 5,373 and 985.08

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Solution

The fourth proportional to 3,582.48, 5,373 and 985.08 is: 1,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.48 : 5,373 = 985.08 : x
  2. Step 2: Convert to fraction form
    3,582.48/5,373 = 985.08/x
  3. Step 3: Cross multiply
    3,582.48x = 5,373 × 985.08
  4. Step 4: Simplify right side
    3,582.48x = 5,292,834.84
  5. Step 5: Solve for x
    x = 5,292,834.84/3,582.48
  6. Step 6: Final answer
    x = 1,477.42

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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.