Home / 6,288.66-9,432.45-2,128.58

Finding the Fourth Proportional to 6,288.66, 9,432.45 and 2,128.58

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Solution

The fourth proportional to 6,288.66, 9,432.45 and 2,128.58 is: 3,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.66 : 9,432.45 = 2,128.58 : x
  2. Step 2: Convert to fraction form
    6,288.66/9,432.45 = 2,128.58/x
  3. Step 3: Cross multiply
    6,288.66x = 9,432.45 × 2,128.58
  4. Step 4: Simplify right side
    6,288.66x = 20,077,704.65
  5. Step 5: Solve for x
    x = 20,077,704.65/6,288.66
  6. Step 6: Final answer
    x = 3,192.68

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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.