Home / 1,330.17-1,995.39-356.37

Finding the Fourth Proportional to 1,330.17, 1,995.39 and 356.37

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Solution

The fourth proportional to 1,330.17, 1,995.39 and 356.37 is: 534.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.17 : 1,995.39 = 356.37 : x
  2. Step 2: Convert to fraction form
    1,330.17/1,995.39 = 356.37/x
  3. Step 3: Cross multiply
    1,330.17x = 1,995.39 × 356.37
  4. Step 4: Simplify right side
    1,330.17x = 711,097.13
  5. Step 5: Solve for x
    x = 711,097.13/1,330.17
  6. Step 6: Final answer
    x = 534.59

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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.