Home / 2,457.11-3,390.77-1,338.02

Finding the Fourth Proportional to 2,457.11, 3,390.77 and 1,338.02

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Solution

The fourth proportional to 2,457.11, 3,390.77 and 1,338.02 is: 1,846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.11 : 3,390.77 = 1,338.02 : x
  2. Step 2: Convert to fraction form
    2,457.11/3,390.77 = 1,338.02/x
  3. Step 3: Cross multiply
    2,457.11x = 3,390.77 × 1,338.02
  4. Step 4: Simplify right side
    2,457.11x = 4,536,894.43
  5. Step 5: Solve for x
    x = 4,536,894.43/2,457.11
  6. Step 6: Final answer
    x = 1,846.44

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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.