Home / 2,750.40-4,131.09-1,656.90

Finding the Fourth Proportional to 2,750.40, 4,131.09 and 1,656.90

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Solution

The fourth proportional to 2,750.40, 4,131.09 and 1,656.90 is: 2,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.40 : 4,131.09 = 1,656.90 : x
  2. Step 2: Convert to fraction form
    2,750.40/4,131.09 = 1,656.90/x
  3. Step 3: Cross multiply
    2,750.40x = 4,131.09 × 1,656.90
  4. Step 4: Simplify right side
    2,750.40x = 6,844,803.02
  5. Step 5: Solve for x
    x = 6,844,803.02/2,750.40
  6. Step 6: Final answer
    x = 2,488.66

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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.