Home / 2,997.70-4,135.51-1,803.15

Finding the Fourth Proportional to 2,997.70, 4,135.51 and 1,803.15

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Solution

The fourth proportional to 2,997.70, 4,135.51 and 1,803.15 is: 2,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.70 : 4,135.51 = 1,803.15 : x
  2. Step 2: Convert to fraction form
    2,997.70/4,135.51 = 1,803.15/x
  3. Step 3: Cross multiply
    2,997.70x = 4,135.51 × 1,803.15
  4. Step 4: Simplify right side
    2,997.70x = 7,456,944.86
  5. Step 5: Solve for x
    x = 7,456,944.86/2,997.70
  6. Step 6: Final answer
    x = 2,487.56

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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.