Home / 6,288.49-9,432.55-2,128.46

Finding the Fourth Proportional to 6,288.49, 9,432.55 and 2,128.46

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Solution

The fourth proportional to 6,288.49, 9,432.55 and 2,128.46 is: 3,192.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.49 : 9,432.55 = 2,128.46 : x
  2. Step 2: Convert to fraction form
    6,288.49/9,432.55 = 2,128.46/x
  3. Step 3: Cross multiply
    6,288.49x = 9,432.55 × 2,128.46
  4. Step 4: Simplify right side
    6,288.49x = 20,076,805.37
  5. Step 5: Solve for x
    x = 20,076,805.37/6,288.49
  6. Step 6: Final answer
    x = 3,192.63

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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.