Home / 1,629.19-2,443.23-533.28

Finding the Fourth Proportional to 1,629.19, 2,443.23 and 533.28

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Solution

The fourth proportional to 1,629.19, 2,443.23 and 533.28 is: 799.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.19 : 2,443.23 = 533.28 : x
  2. Step 2: Convert to fraction form
    1,629.19/2,443.23 = 533.28/x
  3. Step 3: Cross multiply
    1,629.19x = 2,443.23 × 533.28
  4. Step 4: Simplify right side
    1,629.19x = 1,302,925.69
  5. Step 5: Solve for x
    x = 1,302,925.69/1,629.19
  6. Step 6: Final answer
    x = 799.74

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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.