Home / 1,803.37-2,486.40-1,489.90

Finding the Fourth Proportional to 1,803.37, 2,486.40 and 1,489.90

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Solution

The fourth proportional to 1,803.37, 2,486.40 and 1,489.90 is: 2,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.37 : 2,486.40 = 1,489.90 : x
  2. Step 2: Convert to fraction form
    1,803.37/2,486.40 = 1,489.90/x
  3. Step 3: Cross multiply
    1,803.37x = 2,486.40 × 1,489.90
  4. Step 4: Simplify right side
    1,803.37x = 3,704,487.36
  5. Step 5: Solve for x
    x = 3,704,487.36/1,803.37
  6. Step 6: Final answer
    x = 2,054.20

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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.