Home / 1,325.29-1,827.40-1,085.26

Finding the Fourth Proportional to 1,325.29, 1,827.40 and 1,085.26

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Solution

The fourth proportional to 1,325.29, 1,827.40 and 1,085.26 is: 1,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.29 : 1,827.40 = 1,085.26 : x
  2. Step 2: Convert to fraction form
    1,325.29/1,827.40 = 1,085.26/x
  3. Step 3: Cross multiply
    1,325.29x = 1,827.40 × 1,085.26
  4. Step 4: Simplify right side
    1,325.29x = 1,983,212.12
  5. Step 5: Solve for x
    x = 1,983,212.12/1,325.29
  6. Step 6: Final answer
    x = 1,496.44

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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.