Home / 1,282.32-1,921.86-704.52

Finding the Fourth Proportional to 1,282.32, 1,921.86 and 704.52

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Solution

The fourth proportional to 1,282.32, 1,921.86 and 704.52 is: 1,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.32 : 1,921.86 = 704.52 : x
  2. Step 2: Convert to fraction form
    1,282.32/1,921.86 = 704.52/x
  3. Step 3: Cross multiply
    1,282.32x = 1,921.86 × 704.52
  4. Step 4: Simplify right side
    1,282.32x = 1,353,988.81
  5. Step 5: Solve for x
    x = 1,353,988.81/1,282.32
  6. Step 6: Final answer
    x = 1,055.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.