Home / 5,541-8,312.87-1,645.39

Finding the Fourth Proportional to 5,541, 8,312.87 and 1,645.39

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Solution

The fourth proportional to 5,541, 8,312.87 and 1,645.39 is: 2,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541 : 8,312.87 = 1,645.39 : x
  2. Step 2: Convert to fraction form
    5,541/8,312.87 = 1,645.39/x
  3. Step 3: Cross multiply
    5,541x = 8,312.87 × 1,645.39
  4. Step 4: Simplify right side
    5,541x = 13,677,913.17
  5. Step 5: Solve for x
    x = 13,677,913.17/5,541
  6. Step 6: Final answer
    x = 2,468.49

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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.