Home / 1,628.14-2,442.40-532.20

Finding the Fourth Proportional to 1,628.14, 2,442.40 and 532.20

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Solution

The fourth proportional to 1,628.14, 2,442.40 and 532.20 is: 798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.14 : 2,442.40 = 532.20 : x
  2. Step 2: Convert to fraction form
    1,628.14/2,442.40 = 532.20/x
  3. Step 3: Cross multiply
    1,628.14x = 2,442.40 × 532.20
  4. Step 4: Simplify right side
    1,628.14x = 1,299,845.28
  5. Step 5: Solve for x
    x = 1,299,845.28/1,628.14
  6. Step 6: Final answer
    x = 798.36

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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.