Home / 1,004.96-1,386.69-579.53

Finding the Fourth Proportional to 1,004.96, 1,386.69 and 579.53

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Solution

The fourth proportional to 1,004.96, 1,386.69 and 579.53 is: 799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.96 : 1,386.69 = 579.53 : x
  2. Step 2: Convert to fraction form
    1,004.96/1,386.69 = 579.53/x
  3. Step 3: Cross multiply
    1,004.96x = 1,386.69 × 579.53
  4. Step 4: Simplify right side
    1,004.96x = 803,628.46
  5. Step 5: Solve for x
    x = 803,628.46/1,004.96
  6. Step 6: Final answer
    x = 799.66

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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.