Home / 1,036.24-1,551.56-727.63

Finding the Fourth Proportional to 1,036.24, 1,551.56 and 727.63

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Solution

The fourth proportional to 1,036.24, 1,551.56 and 727.63 is: 1,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.24 : 1,551.56 = 727.63 : x
  2. Step 2: Convert to fraction form
    1,036.24/1,551.56 = 727.63/x
  3. Step 3: Cross multiply
    1,036.24x = 1,551.56 × 727.63
  4. Step 4: Simplify right side
    1,036.24x = 1,128,962.81
  5. Step 5: Solve for x
    x = 1,128,962.81/1,036.24
  6. Step 6: Final answer
    x = 1,089.48

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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.