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Finding the Fourth Proportional to 1,324.13, 1,828.17 and 904.33

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Solution

The fourth proportional to 1,324.13, 1,828.17 and 904.33 is: 1,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.13 : 1,828.17 = 904.33 : x
  2. Step 2: Convert to fraction form
    1,324.13/1,828.17 = 904.33/x
  3. Step 3: Cross multiply
    1,324.13x = 1,828.17 × 904.33
  4. Step 4: Simplify right side
    1,324.13x = 1,653,268.98
  5. Step 5: Solve for x
    x = 1,653,268.98/1,324.13
  6. Step 6: Final answer
    x = 1,248.57

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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.