Home / 1,554.09-2,331.14-399.75

Finding the Fourth Proportional to 1,554.09, 2,331.14 and 399.75

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Solution

The fourth proportional to 1,554.09, 2,331.14 and 399.75 is: 599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.09 : 2,331.14 = 399.75 : x
  2. Step 2: Convert to fraction form
    1,554.09/2,331.14 = 399.75/x
  3. Step 3: Cross multiply
    1,554.09x = 2,331.14 × 399.75
  4. Step 4: Simplify right side
    1,554.09x = 931,871.22
  5. Step 5: Solve for x
    x = 931,871.22/1,554.09
  6. Step 6: Final answer
    x = 599.63

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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.