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Finding the Fourth Proportional to 1,530.45, 2,293.83 and 555.41

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Solution

The fourth proportional to 1,530.45, 2,293.83 and 555.41 is: 832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.45 : 2,293.83 = 555.41 : x
  2. Step 2: Convert to fraction form
    1,530.45/2,293.83 = 555.41/x
  3. Step 3: Cross multiply
    1,530.45x = 2,293.83 × 555.41
  4. Step 4: Simplify right side
    1,530.45x = 1,274,004.65
  5. Step 5: Solve for x
    x = 1,274,004.65/1,530.45
  6. Step 6: Final answer
    x = 832.44

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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.