Home / 5,085.42-7,621.34-2,160.06

Finding the Fourth Proportional to 5,085.42, 7,621.34 and 2,160.06

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Solution

The fourth proportional to 5,085.42, 7,621.34 and 2,160.06 is: 3,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.42 : 7,621.34 = 2,160.06 : x
  2. Step 2: Convert to fraction form
    5,085.42/7,621.34 = 2,160.06/x
  3. Step 3: Cross multiply
    5,085.42x = 7,621.34 × 2,160.06
  4. Step 4: Simplify right side
    5,085.42x = 16,462,540.88
  5. Step 5: Solve for x
    x = 16,462,540.88/5,085.42
  6. Step 6: Final answer
    x = 3,237.20

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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.