Home / 3,426.86-5,140.29-1,118.36

Finding the Fourth Proportional to 3,426.86, 5,140.29 and 1,118.36

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Solution

The fourth proportional to 3,426.86, 5,140.29 and 1,118.36 is: 1,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.86 : 5,140.29 = 1,118.36 : x
  2. Step 2: Convert to fraction form
    3,426.86/5,140.29 = 1,118.36/x
  3. Step 3: Cross multiply
    3,426.86x = 5,140.29 × 1,118.36
  4. Step 4: Simplify right side
    3,426.86x = 5,748,669.02
  5. Step 5: Solve for x
    x = 5,748,669.02/3,426.86
  6. Step 6: Final answer
    x = 1,677.53

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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.