Home / 1,722.59-2,377.00-976.40

Finding the Fourth Proportional to 1,722.59, 2,377.00 and 976.40

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Solution

The fourth proportional to 1,722.59, 2,377.00 and 976.40 is: 1,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.59 : 2,377.00 = 976.40 : x
  2. Step 2: Convert to fraction form
    1,722.59/2,377.00 = 976.40/x
  3. Step 3: Cross multiply
    1,722.59x = 2,377.00 × 976.40
  4. Step 4: Simplify right side
    1,722.59x = 2,320,906.30
  5. Step 5: Solve for x
    x = 2,320,906.30/1,722.59
  6. Step 6: Final answer
    x = 1,347.33

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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.