Home / 1,674.67-2,311.19-976.09

Finding the Fourth Proportional to 1,674.67, 2,311.19 and 976.09

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Solution

The fourth proportional to 1,674.67, 2,311.19 and 976.09 is: 1,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.67 : 2,311.19 = 976.09 : x
  2. Step 2: Convert to fraction form
    1,674.67/2,311.19 = 976.09/x
  3. Step 3: Cross multiply
    1,674.67x = 2,311.19 × 976.09
  4. Step 4: Simplify right side
    1,674.67x = 2,255,924.57
  5. Step 5: Solve for x
    x = 2,255,924.57/1,674.67
  6. Step 6: Final answer
    x = 1,347.09

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1.5x scale

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.