Home / 6,553.85-9,043.61-3,900.74

Finding the Fourth Proportional to 6,553.85, 9,043.61 and 3,900.74

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Solution

The fourth proportional to 6,553.85, 9,043.61 and 3,900.74 is: 5,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,553.85 : 9,043.61 = 3,900.74 : x
  2. Step 2: Convert to fraction form
    6,553.85/9,043.61 = 3,900.74/x
  3. Step 3: Cross multiply
    6,553.85x = 9,043.61 × 3,900.74
  4. Step 4: Simplify right side
    6,553.85x = 35,276,706.55
  5. Step 5: Solve for x
    x = 35,276,706.55/6,553.85
  6. Step 6: Final answer
    x = 5,382.60

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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.