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Finding the Fourth Proportional to 1,384, 2,076.12 and 358

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Solution

The fourth proportional to 1,384, 2,076.12 and 358 is: 537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384 : 2,076.12 = 358 : x
  2. Step 2: Convert to fraction form
    1,384/2,076.12 = 358/x
  3. Step 3: Cross multiply
    1,384x = 2,076.12 × 358
  4. Step 4: Simplify right side
    1,384x = 743,250.96
  5. Step 5: Solve for x
    x = 743,250.96/1,384
  6. Step 6: Final answer
    x = 537.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.