Home / 2,457.09-3,390.75-1,338.03

Finding the Fourth Proportional to 2,457.09, 3,390.75 and 1,338.03

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Solution

The fourth proportional to 2,457.09, 3,390.75 and 1,338.03 is: 1,846.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.09 : 3,390.75 = 1,338.03 : x
  2. Step 2: Convert to fraction form
    2,457.09/3,390.75 = 1,338.03/x
  3. Step 3: Cross multiply
    2,457.09x = 3,390.75 × 1,338.03
  4. Step 4: Simplify right side
    2,457.09x = 4,536,925.22
  5. Step 5: Solve for x
    x = 4,536,925.22/2,457.09
  6. Step 6: Final answer
    x = 1,846.46

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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.