Home / 1,293.05-1,938.29-552.57

Finding the Fourth Proportional to 1,293.05, 1,938.29 and 552.57

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Solution

The fourth proportional to 1,293.05, 1,938.29 and 552.57 is: 828.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.05 : 1,938.29 = 552.57 : x
  2. Step 2: Convert to fraction form
    1,293.05/1,938.29 = 552.57/x
  3. Step 3: Cross multiply
    1,293.05x = 1,938.29 × 552.57
  4. Step 4: Simplify right side
    1,293.05x = 1,071,038.14
  5. Step 5: Solve for x
    x = 1,071,038.14/1,293.05
  6. Step 6: Final answer
    x = 828.31

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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.