Home / 2,921.38-4,382.09-973.58

Finding the Fourth Proportional to 2,921.38, 4,382.09 and 973.58

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Solution

The fourth proportional to 2,921.38, 4,382.09 and 973.58 is: 1,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.38 : 4,382.09 = 973.58 : x
  2. Step 2: Convert to fraction form
    2,921.38/4,382.09 = 973.58/x
  3. Step 3: Cross multiply
    2,921.38x = 4,382.09 × 973.58
  4. Step 4: Simplify right side
    2,921.38x = 4,266,308.49
  5. Step 5: Solve for x
    x = 4,266,308.49/2,921.38
  6. Step 6: Final answer
    x = 1,460.38

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1.5x scale

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.