Home / 7,490.80-11,222.70-3,586.60

Finding the Fourth Proportional to 7,490.80, 11,222.70 and 3,586.60

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Solution

The fourth proportional to 7,490.80, 11,222.70 and 3,586.60 is: 5,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.80 : 11,222.70 = 3,586.60 : x
  2. Step 2: Convert to fraction form
    7,490.80/11,222.70 = 3,586.60/x
  3. Step 3: Cross multiply
    7,490.80x = 11,222.70 × 3,586.60
  4. Step 4: Simplify right side
    7,490.80x = 40,251,335.82
  5. Step 5: Solve for x
    x = 40,251,335.82/7,490.80
  6. Step 6: Final answer
    x = 5,373.44

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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.