Home / 1,082.39-1,621.54-533.93

Finding the Fourth Proportional to 1,082.39, 1,621.54 and 533.93

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Solution

The fourth proportional to 1,082.39, 1,621.54 and 533.93 is: 799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.39 : 1,621.54 = 533.93 : x
  2. Step 2: Convert to fraction form
    1,082.39/1,621.54 = 533.93/x
  3. Step 3: Cross multiply
    1,082.39x = 1,621.54 × 533.93
  4. Step 4: Simplify right side
    1,082.39x = 865,779.41
  5. Step 5: Solve for x
    x = 865,779.41/1,082.39
  6. Step 6: Final answer
    x = 799.88

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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.