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Finding the Fourth Proportional to 984.08, 1,356.54 and 652.52

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Solution

The fourth proportional to 984.08, 1,356.54 and 652.52 is: 899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    984.08 : 1,356.54 = 652.52 : x
  2. Step 2: Convert to fraction form
    984.08/1,356.54 = 652.52/x
  3. Step 3: Cross multiply
    984.08x = 1,356.54 × 652.52
  4. Step 4: Simplify right side
    984.08x = 885,169.48
  5. Step 5: Solve for x
    x = 885,169.48/984.08
  6. Step 6: Final answer
    x = 899.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.