Home / 2,457.23-3,390.99-1,338.17

Finding the Fourth Proportional to 2,457.23, 3,390.99 and 1,338.17

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Solution

The fourth proportional to 2,457.23, 3,390.99 and 1,338.17 is: 1,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.23 : 3,390.99 = 1,338.17 : x
  2. Step 2: Convert to fraction form
    2,457.23/3,390.99 = 1,338.17/x
  3. Step 3: Cross multiply
    2,457.23x = 3,390.99 × 1,338.17
  4. Step 4: Simplify right side
    2,457.23x = 4,537,721.09
  5. Step 5: Solve for x
    x = 4,537,721.09/2,457.23
  6. Step 6: Final answer
    x = 1,846.68

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1.5x scale

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.