Home / 5,186.39-7,780.01-1,898.69

Finding the Fourth Proportional to 5,186.39, 7,780.01 and 1,898.69

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Solution

The fourth proportional to 5,186.39, 7,780.01 and 1,898.69 is: 2,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.39 : 7,780.01 = 1,898.69 : x
  2. Step 2: Convert to fraction form
    5,186.39/7,780.01 = 1,898.69/x
  3. Step 3: Cross multiply
    5,186.39x = 7,780.01 × 1,898.69
  4. Step 4: Simplify right side
    5,186.39x = 14,771,778.79
  5. Step 5: Solve for x
    x = 14,771,778.79/5,186.39
  6. Step 6: Final answer
    x = 2,848.18

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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.