Home / 5,186.22-7,780.47-1,488.16

Finding the Fourth Proportional to 5,186.22, 7,780.47 and 1,488.16

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Solution

The fourth proportional to 5,186.22, 7,780.47 and 1,488.16 is: 2,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.22 : 7,780.47 = 1,488.16 : x
  2. Step 2: Convert to fraction form
    5,186.22/7,780.47 = 1,488.16/x
  3. Step 3: Cross multiply
    5,186.22x = 7,780.47 × 1,488.16
  4. Step 4: Simplify right side
    5,186.22x = 11,578,588.38
  5. Step 5: Solve for x
    x = 11,578,588.38/5,186.22
  6. Step 6: Final answer
    x = 2,232.57

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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.