Home / 10,769.49-16,152.97-2,978.91

Finding the Fourth Proportional to 10,769.49, 16,152.97 and 2,978.91

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Solution

The fourth proportional to 10,769.49, 16,152.97 and 2,978.91 is: 4,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769.49 : 16,152.97 = 2,978.91 : x
  2. Step 2: Convert to fraction form
    10,769.49/16,152.97 = 2,978.91/x
  3. Step 3: Cross multiply
    10,769.49x = 16,152.97 × 2,978.91
  4. Step 4: Simplify right side
    10,769.49x = 48,118,243.86
  5. Step 5: Solve for x
    x = 48,118,243.86/10,769.49
  6. Step 6: Final answer
    x = 4,468.02

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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.