Home / 1,035.21-1,551.90-385.48

Finding the Fourth Proportional to 1,035.21, 1,551.90 and 385.48

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Solution

The fourth proportional to 1,035.21, 1,551.90 and 385.48 is: 577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.21 : 1,551.90 = 385.48 : x
  2. Step 2: Convert to fraction form
    1,035.21/1,551.90 = 385.48/x
  3. Step 3: Cross multiply
    1,035.21x = 1,551.90 × 385.48
  4. Step 4: Simplify right side
    1,035.21x = 598,226.41
  5. Step 5: Solve for x
    x = 598,226.41/1,035.21
  6. Step 6: Final answer
    x = 577.88

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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.