Home / 1,632.29-2,448.60-521.31

Finding the Fourth Proportional to 1,632.29, 2,448.60 and 521.31

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Solution

The fourth proportional to 1,632.29, 2,448.60 and 521.31 is: 782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.29 : 2,448.60 = 521.31 : x
  2. Step 2: Convert to fraction form
    1,632.29/2,448.60 = 521.31/x
  3. Step 3: Cross multiply
    1,632.29x = 2,448.60 × 521.31
  4. Step 4: Simplify right side
    1,632.29x = 1,276,490.70
  5. Step 5: Solve for x
    x = 1,276,490.70/1,632.29
  6. Step 6: Final answer
    x = 782.03

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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.