Home / 5,301.18-7,951.77-1,405.89

Finding the Fourth Proportional to 5,301.18, 7,951.77 and 1,405.89

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Solution

The fourth proportional to 5,301.18, 7,951.77 and 1,405.89 is: 2,108.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,301.18 : 7,951.77 = 1,405.89 : x
  2. Step 2: Convert to fraction form
    5,301.18/7,951.77 = 1,405.89/x
  3. Step 3: Cross multiply
    5,301.18x = 7,951.77 × 1,405.89
  4. Step 4: Simplify right side
    5,301.18x = 11,179,313.93
  5. Step 5: Solve for x
    x = 11,179,313.93/5,301.18
  6. Step 6: Final answer
    x = 2,108.84

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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.