Home / 5,186.84-7,780.36-2,726.46

Finding the Fourth Proportional to 5,186.84, 7,780.36 and 2,726.46

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Solution

The fourth proportional to 5,186.84, 7,780.36 and 2,726.46 is: 4,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.84 : 7,780.36 = 2,726.46 : x
  2. Step 2: Convert to fraction form
    5,186.84/7,780.36 = 2,726.46/x
  3. Step 3: Cross multiply
    5,186.84x = 7,780.36 × 2,726.46
  4. Step 4: Simplify right side
    5,186.84x = 21,212,840.33
  5. Step 5: Solve for x
    x = 21,212,840.33/5,186.84
  6. Step 6: Final answer
    x = 4,089.74

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1.5x scale

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.