Home / 1,231.52-1,697.35-1,073.16

Finding the Fourth Proportional to 1,231.52, 1,697.35 and 1,073.16

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Solution

The fourth proportional to 1,231.52, 1,697.35 and 1,073.16 is: 1,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.52 : 1,697.35 = 1,073.16 : x
  2. Step 2: Convert to fraction form
    1,231.52/1,697.35 = 1,073.16/x
  3. Step 3: Cross multiply
    1,231.52x = 1,697.35 × 1,073.16
  4. Step 4: Simplify right side
    1,231.52x = 1,821,528.13
  5. Step 5: Solve for x
    x = 1,821,528.13/1,231.52
  6. Step 6: Final answer
    x = 1,479.09

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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.