Home / 3,401.21-4,693.68-1,985.88

Finding the Fourth Proportional to 3,401.21, 4,693.68 and 1,985.88

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Solution

The fourth proportional to 3,401.21, 4,693.68 and 1,985.88 is: 2,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.21 : 4,693.68 = 1,985.88 : x
  2. Step 2: Convert to fraction form
    3,401.21/4,693.68 = 1,985.88/x
  3. Step 3: Cross multiply
    3,401.21x = 4,693.68 × 1,985.88
  4. Step 4: Simplify right side
    3,401.21x = 9,321,085.24
  5. Step 5: Solve for x
    x = 9,321,085.24/3,401.21
  6. Step 6: Final answer
    x = 2,740.52

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1.5x scale

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.