Home / 6,288.55-9,432.84-2,128.60

Finding the Fourth Proportional to 6,288.55, 9,432.84 and 2,128.60

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Solution

The fourth proportional to 6,288.55, 9,432.84 and 2,128.60 is: 3,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.55 : 9,432.84 = 2,128.60 : x
  2. Step 2: Convert to fraction form
    6,288.55/9,432.84 = 2,128.60/x
  3. Step 3: Cross multiply
    6,288.55x = 9,432.84 × 2,128.60
  4. Step 4: Simplify right side
    6,288.55x = 20,078,696.06
  5. Step 5: Solve for x
    x = 20,078,696.06/6,288.55
  6. Step 6: Final answer
    x = 3,192.90

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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.