Home / 3,618.70-4,990.52-3,060.34

Finding the Fourth Proportional to 3,618.70, 4,990.52 and 3,060.34

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Solution

The fourth proportional to 3,618.70, 4,990.52 and 3,060.34 is: 4,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.70 : 4,990.52 = 3,060.34 : x
  2. Step 2: Convert to fraction form
    3,618.70/4,990.52 = 3,060.34/x
  3. Step 3: Cross multiply
    3,618.70x = 4,990.52 × 3,060.34
  4. Step 4: Simplify right side
    3,618.70x = 15,272,687.98
  5. Step 5: Solve for x
    x = 15,272,687.98/3,618.70
  6. Step 6: Final answer
    x = 4,220.49

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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.