Home / 1,803.40-2,699.43-1,761.28

Finding the Fourth Proportional to 1,803.40, 2,699.43 and 1,761.28

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Solution

The fourth proportional to 1,803.40, 2,699.43 and 1,761.28 is: 2,636.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.40 : 2,699.43 = 1,761.28 : x
  2. Step 2: Convert to fraction form
    1,803.40/2,699.43 = 1,761.28/x
  3. Step 3: Cross multiply
    1,803.40x = 2,699.43 × 1,761.28
  4. Step 4: Simplify right side
    1,803.40x = 4,754,438.72
  5. Step 5: Solve for x
    x = 4,754,438.72/1,803.40
  6. Step 6: Final answer
    x = 2,636.38

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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.