Home / 6,288.05-9,432.09-2,128.10

Finding the Fourth Proportional to 6,288.05, 9,432.09 and 2,128.10

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Solution

The fourth proportional to 6,288.05, 9,432.09 and 2,128.10 is: 3,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.05 : 9,432.09 = 2,128.10 : x
  2. Step 2: Convert to fraction form
    6,288.05/9,432.09 = 2,128.10/x
  3. Step 3: Cross multiply
    6,288.05x = 9,432.09 × 2,128.10
  4. Step 4: Simplify right side
    6,288.05x = 20,072,383.57
  5. Step 5: Solve for x
    x = 20,072,383.57/6,288.05
  6. Step 6: Final answer
    x = 3,192.15

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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.