Home / 1,371.18-2,057.60-549.34

Finding the Fourth Proportional to 1,371.18, 2,057.60 and 549.34

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Solution

The fourth proportional to 1,371.18, 2,057.60 and 549.34 is: 824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.18 : 2,057.60 = 549.34 : x
  2. Step 2: Convert to fraction form
    1,371.18/2,057.60 = 549.34/x
  3. Step 3: Cross multiply
    1,371.18x = 2,057.60 × 549.34
  4. Step 4: Simplify right side
    1,371.18x = 1,130,321.98
  5. Step 5: Solve for x
    x = 1,130,321.98/1,371.18
  6. Step 6: Final answer
    x = 824.34

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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.