Home / 4,085.28-6,125.64-2,000.80

Finding the Fourth Proportional to 4,085.28, 6,125.64 and 2,000.80

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Solution

The fourth proportional to 4,085.28, 6,125.64 and 2,000.80 is: 3,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.28 : 6,125.64 = 2,000.80 : x
  2. Step 2: Convert to fraction form
    4,085.28/6,125.64 = 2,000.80/x
  3. Step 3: Cross multiply
    4,085.28x = 6,125.64 × 2,000.80
  4. Step 4: Simplify right side
    4,085.28x = 12,256,180.51
  5. Step 5: Solve for x
    x = 12,256,180.51/4,085.28
  6. Step 6: Final answer
    x = 3,000.08

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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.