Home / 1,081.32-1,502.34-1,068.36

Finding the Fourth Proportional to 1,081.32, 1,502.34 and 1,068.36

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Solution

The fourth proportional to 1,081.32, 1,502.34 and 1,068.36 is: 1,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.32 : 1,502.34 = 1,068.36 : x
  2. Step 2: Convert to fraction form
    1,081.32/1,502.34 = 1,068.36/x
  3. Step 3: Cross multiply
    1,081.32x = 1,502.34 × 1,068.36
  4. Step 4: Simplify right side
    1,081.32x = 1,605,039.96
  5. Step 5: Solve for x
    x = 1,605,039.96/1,081.32
  6. Step 6: Final answer
    x = 1,484.33

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.