Home / 5,541.51-8,310.84-1,645

Finding the Fourth Proportional to 5,541.51, 8,310.84 and 1,645

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Solution

The fourth proportional to 5,541.51, 8,310.84 and 1,645 is: 2,467.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.51 : 8,310.84 = 1,645 : x
  2. Step 2: Convert to fraction form
    5,541.51/8,310.84 = 1,645/x
  3. Step 3: Cross multiply
    5,541.51x = 8,310.84 × 1,645
  4. Step 4: Simplify right side
    5,541.51x = 13,671,331.80
  5. Step 5: Solve for x
    x = 13,671,331.80/5,541.51
  6. Step 6: Final answer
    x = 2,467.08

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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.