Home / 1,674.62-2,311.35-976.13

Finding the Fourth Proportional to 1,674.62, 2,311.35 and 976.13

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Solution

The fourth proportional to 1,674.62, 2,311.35 and 976.13 is: 1,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.62 : 2,311.35 = 976.13 : x
  2. Step 2: Convert to fraction form
    1,674.62/2,311.35 = 976.13/x
  3. Step 3: Cross multiply
    1,674.62x = 2,311.35 × 976.13
  4. Step 4: Simplify right side
    1,674.62x = 2,256,178.08
  5. Step 5: Solve for x
    x = 2,256,178.08/1,674.62
  6. Step 6: Final answer
    x = 1,347.28

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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.