Home / 4,085.50-6,126.87-1,621.18

Finding the Fourth Proportional to 4,085.50, 6,126.87 and 1,621.18

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Solution

The fourth proportional to 4,085.50, 6,126.87 and 1,621.18 is: 2,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.50 : 6,126.87 = 1,621.18 : x
  2. Step 2: Convert to fraction form
    4,085.50/6,126.87 = 1,621.18/x
  3. Step 3: Cross multiply
    4,085.50x = 6,126.87 × 1,621.18
  4. Step 4: Simplify right side
    4,085.50x = 9,932,759.11
  5. Step 5: Solve for x
    x = 9,932,759.11/4,085.50
  6. Step 6: Final answer
    x = 2,431.22

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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.