Home / 7,219.41-10,833.78-4,991.72

Finding the Fourth Proportional to 7,219.41, 10,833.78 and 4,991.72

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Solution

The fourth proportional to 7,219.41, 10,833.78 and 4,991.72 is: 7,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.41 : 10,833.78 = 4,991.72 : x
  2. Step 2: Convert to fraction form
    7,219.41/10,833.78 = 4,991.72/x
  3. Step 3: Cross multiply
    7,219.41x = 10,833.78 × 4,991.72
  4. Step 4: Simplify right side
    7,219.41x = 54,079,142.13
  5. Step 5: Solve for x
    x = 54,079,142.13/7,219.41
  6. Step 6: Final answer
    x = 7,490.80

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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.