Home / 3,985.60-5,970.30-2,519.56

Finding the Fourth Proportional to 3,985.60, 5,970.30 and 2,519.56

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Solution

The fourth proportional to 3,985.60, 5,970.30 and 2,519.56 is: 3,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.60 : 5,970.30 = 2,519.56 : x
  2. Step 2: Convert to fraction form
    3,985.60/5,970.30 = 2,519.56/x
  3. Step 3: Cross multiply
    3,985.60x = 5,970.30 × 2,519.56
  4. Step 4: Simplify right side
    3,985.60x = 15,042,529.07
  5. Step 5: Solve for x
    x = 15,042,529.07/3,985.60
  6. Step 6: Final answer
    x = 3,774.22

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1.5x scale

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.