Home / 1,930.13-2,894.75-543.60

Finding the Fourth Proportional to 1,930.13, 2,894.75 and 543.60

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Solution

The fourth proportional to 1,930.13, 2,894.75 and 543.60 is: 815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.13 : 2,894.75 = 543.60 : x
  2. Step 2: Convert to fraction form
    1,930.13/2,894.75 = 543.60/x
  3. Step 3: Cross multiply
    1,930.13x = 2,894.75 × 543.60
  4. Step 4: Simplify right side
    1,930.13x = 1,573,583.38
  5. Step 5: Solve for x
    x = 1,573,583.38/1,930.13
  6. Step 6: Final answer
    x = 815.28

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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.