Home / 1,403.18-2,104.77-580.55

Finding the Fourth Proportional to 1,403.18, 2,104.77 and 580.55

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Solution

The fourth proportional to 1,403.18, 2,104.77 and 580.55 is: 870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.18 : 2,104.77 = 580.55 : x
  2. Step 2: Convert to fraction form
    1,403.18/2,104.77 = 580.55/x
  3. Step 3: Cross multiply
    1,403.18x = 2,104.77 × 580.55
  4. Step 4: Simplify right side
    1,403.18x = 1,221,924.22
  5. Step 5: Solve for x
    x = 1,221,924.22/1,403.18
  6. Step 6: Final answer
    x = 870.83

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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.