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Finding the Fourth Proportional to 1,649.37, 2,473.48 and 553.49

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Solution

The fourth proportional to 1,649.37, 2,473.48 and 553.49 is: 830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.37 : 2,473.48 = 553.49 : x
  2. Step 2: Convert to fraction form
    1,649.37/2,473.48 = 553.49/x
  3. Step 3: Cross multiply
    1,649.37x = 2,473.48 × 553.49
  4. Step 4: Simplify right side
    1,649.37x = 1,369,046.45
  5. Step 5: Solve for x
    x = 1,369,046.45/1,649.37
  6. Step 6: Final answer
    x = 830.04

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1.5x scale

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.