Home / 1,325.27-1,988.01-401.06

Finding the Fourth Proportional to 1,325.27, 1,988.01 and 401.06

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Solution

The fourth proportional to 1,325.27, 1,988.01 and 401.06 is: 601.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.27 : 1,988.01 = 401.06 : x
  2. Step 2: Convert to fraction form
    1,325.27/1,988.01 = 401.06/x
  3. Step 3: Cross multiply
    1,325.27x = 1,988.01 × 401.06
  4. Step 4: Simplify right side
    1,325.27x = 797,316.26
  5. Step 5: Solve for x
    x = 797,316.26/1,325.27
  6. Step 6: Final answer
    x = 601.62

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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.