Home / 1,543.78-2,316.70-1,273.14

Finding the Fourth Proportional to 1,543.78, 2,316.70 and 1,273.14

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Solution

The fourth proportional to 1,543.78, 2,316.70 and 1,273.14 is: 1,910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.78 : 2,316.70 = 1,273.14 : x
  2. Step 2: Convert to fraction form
    1,543.78/2,316.70 = 1,273.14/x
  3. Step 3: Cross multiply
    1,543.78x = 2,316.70 × 1,273.14
  4. Step 4: Simplify right side
    1,543.78x = 2,949,483.44
  5. Step 5: Solve for x
    x = 2,949,483.44/1,543.78
  6. Step 6: Final answer
    x = 1,910.56

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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.