Home / 5,386.69-8,077.94-1,687.93

Finding the Fourth Proportional to 5,386.69, 8,077.94 and 1,687.93

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Solution

The fourth proportional to 5,386.69, 8,077.94 and 1,687.93 is: 2,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.69 : 8,077.94 = 1,687.93 : x
  2. Step 2: Convert to fraction form
    5,386.69/8,077.94 = 1,687.93/x
  3. Step 3: Cross multiply
    5,386.69x = 8,077.94 × 1,687.93
  4. Step 4: Simplify right side
    5,386.69x = 13,634,997.26
  5. Step 5: Solve for x
    x = 13,634,997.26/5,386.69
  6. Step 6: Final answer
    x = 2,531.24

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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.