Home / 1,739.27-2,606.53-812.84

Finding the Fourth Proportional to 1,739.27, 2,606.53 and 812.84

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Solution

The fourth proportional to 1,739.27, 2,606.53 and 812.84 is: 1,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,739.27 : 2,606.53 = 812.84 : x
  2. Step 2: Convert to fraction form
    1,739.27/2,606.53 = 812.84/x
  3. Step 3: Cross multiply
    1,739.27x = 2,606.53 × 812.84
  4. Step 4: Simplify right side
    1,739.27x = 2,118,678.30
  5. Step 5: Solve for x
    x = 2,118,678.30/1,739.27
  6. Step 6: Final answer
    x = 1,218.14

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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.