Home / 1,673.12-2,308.79-927.01

Finding the Fourth Proportional to 1,673.12, 2,308.79 and 927.01

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Solution

The fourth proportional to 1,673.12, 2,308.79 and 927.01 is: 1,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.12 : 2,308.79 = 927.01 : x
  2. Step 2: Convert to fraction form
    1,673.12/2,308.79 = 927.01/x
  3. Step 3: Cross multiply
    1,673.12x = 2,308.79 × 927.01
  4. Step 4: Simplify right side
    1,673.12x = 2,140,255.24
  5. Step 5: Solve for x
    x = 2,140,255.24/1,673.12
  6. Step 6: Final answer
    x = 1,279.20

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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.