Home / 1,324.65-1,828.05-727.17

Finding the Fourth Proportional to 1,324.65, 1,828.05 and 727.17

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Solution

The fourth proportional to 1,324.65, 1,828.05 and 727.17 is: 1,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.65 : 1,828.05 = 727.17 : x
  2. Step 2: Convert to fraction form
    1,324.65/1,828.05 = 727.17/x
  3. Step 3: Cross multiply
    1,324.65x = 1,828.05 × 727.17
  4. Step 4: Simplify right side
    1,324.65x = 1,329,303.12
  5. Step 5: Solve for x
    x = 1,329,303.12/1,324.65
  6. Step 6: Final answer
    x = 1,003.51

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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.