Home / 5,187.51-7,770.26-3,623.81

Finding the Fourth Proportional to 5,187.51, 7,770.26 and 3,623.81

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Solution

The fourth proportional to 5,187.51, 7,770.26 and 3,623.81 is: 5,428.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.51 : 7,770.26 = 3,623.81 : x
  2. Step 2: Convert to fraction form
    5,187.51/7,770.26 = 3,623.81/x
  3. Step 3: Cross multiply
    5,187.51x = 7,770.26 × 3,623.81
  4. Step 4: Simplify right side
    5,187.51x = 28,157,916.10
  5. Step 5: Solve for x
    x = 28,157,916.10/5,187.51
  6. Step 6: Final answer
    x = 5,428.02

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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.