Home / 5,486.47-8,227.75-1,788.01

Finding the Fourth Proportional to 5,486.47, 8,227.75 and 1,788.01

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Solution

The fourth proportional to 5,486.47, 8,227.75 and 1,788.01 is: 2,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.47 : 8,227.75 = 1,788.01 : x
  2. Step 2: Convert to fraction form
    5,486.47/8,227.75 = 1,788.01/x
  3. Step 3: Cross multiply
    5,486.47x = 8,227.75 × 1,788.01
  4. Step 4: Simplify right side
    5,486.47x = 14,711,299.28
  5. Step 5: Solve for x
    x = 14,711,299.28/5,486.47
  6. Step 6: Final answer
    x = 2,681.38

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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.