Home / 3,401.15-4,693.61-1,985.72

Finding the Fourth Proportional to 3,401.15, 4,693.61 and 1,985.72

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Solution

The fourth proportional to 3,401.15, 4,693.61 and 1,985.72 is: 2,740.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.15 : 4,693.61 = 1,985.72 : x
  2. Step 2: Convert to fraction form
    3,401.15/4,693.61 = 1,985.72/x
  3. Step 3: Cross multiply
    3,401.15x = 4,693.61 × 1,985.72
  4. Step 4: Simplify right side
    3,401.15x = 9,320,176.75
  5. Step 5: Solve for x
    x = 9,320,176.75/3,401.15
  6. Step 6: Final answer
    x = 2,740.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.