Home / 7,890.20-10,887.98-4,353.41

Finding the Fourth Proportional to 7,890.20, 10,887.98 and 4,353.41

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Solution

The fourth proportional to 7,890.20, 10,887.98 and 4,353.41 is: 6,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.20 : 10,887.98 = 4,353.41 : x
  2. Step 2: Convert to fraction form
    7,890.20/10,887.98 = 4,353.41/x
  3. Step 3: Cross multiply
    7,890.20x = 10,887.98 × 4,353.41
  4. Step 4: Simplify right side
    7,890.20x = 47,399,764.80
  5. Step 5: Solve for x
    x = 47,399,764.80/7,890.20
  6. Step 6: Final answer
    x = 6,007.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.