Home / 1,403.40-2,104.68-537.51

Finding the Fourth Proportional to 1,403.40, 2,104.68 and 537.51

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Solution

The fourth proportional to 1,403.40, 2,104.68 and 537.51 is: 806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.40 : 2,104.68 = 537.51 : x
  2. Step 2: Convert to fraction form
    1,403.40/2,104.68 = 537.51/x
  3. Step 3: Cross multiply
    1,403.40x = 2,104.68 × 537.51
  4. Step 4: Simplify right side
    1,403.40x = 1,131,286.55
  5. Step 5: Solve for x
    x = 1,131,286.55/1,403.40
  6. Step 6: Final answer
    x = 806.10

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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.