Home / 1,371.14-2,056.40-397.03

Finding the Fourth Proportional to 1,371.14, 2,056.40 and 397.03

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Solution

The fourth proportional to 1,371.14, 2,056.40 and 397.03 is: 595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.14 : 2,056.40 = 397.03 : x
  2. Step 2: Convert to fraction form
    1,371.14/2,056.40 = 397.03/x
  3. Step 3: Cross multiply
    1,371.14x = 2,056.40 × 397.03
  4. Step 4: Simplify right side
    1,371.14x = 816,452.49
  5. Step 5: Solve for x
    x = 816,452.49/1,371.14
  6. Step 6: Final answer
    x = 595.46

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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.