Home / 1,403.13-2,103.16-580.97

Finding the Fourth Proportional to 1,403.13, 2,103.16 and 580.97

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Solution

The fourth proportional to 1,403.13, 2,103.16 and 580.97 is: 870.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.13 : 2,103.16 = 580.97 : x
  2. Step 2: Convert to fraction form
    1,403.13/2,103.16 = 580.97/x
  3. Step 3: Cross multiply
    1,403.13x = 2,103.16 × 580.97
  4. Step 4: Simplify right side
    1,403.13x = 1,221,872.87
  5. Step 5: Solve for x
    x = 1,221,872.87/1,403.13
  6. Step 6: Final answer
    x = 870.82

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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.