Home / 1,768.68-2,648.52-1,457.28

Finding the Fourth Proportional to 1,768.68, 2,648.52 and 1,457.28

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Solution

The fourth proportional to 1,768.68, 2,648.52 and 1,457.28 is: 2,182.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.68 : 2,648.52 = 1,457.28 : x
  2. Step 2: Convert to fraction form
    1,768.68/2,648.52 = 1,457.28/x
  3. Step 3: Cross multiply
    1,768.68x = 2,648.52 × 1,457.28
  4. Step 4: Simplify right side
    1,768.68x = 3,859,635.23
  5. Step 5: Solve for x
    x = 3,859,635.23/1,768.68
  6. Step 6: Final answer
    x = 2,182.21

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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.