Home / 4,180.52-6,270.89-1,989.47

Finding the Fourth Proportional to 4,180.52, 6,270.89 and 1,989.47

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Solution

The fourth proportional to 4,180.52, 6,270.89 and 1,989.47 is: 2,984.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.52 : 6,270.89 = 1,989.47 : x
  2. Step 2: Convert to fraction form
    4,180.52/6,270.89 = 1,989.47/x
  3. Step 3: Cross multiply
    4,180.52x = 6,270.89 × 1,989.47
  4. Step 4: Simplify right side
    4,180.52x = 12,475,753.26
  5. Step 5: Solve for x
    x = 12,475,753.26/4,180.52
  6. Step 6: Final answer
    x = 2,984.26

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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.