Home / 2,920.01-4,379.94-972.23

Finding the Fourth Proportional to 2,920.01, 4,379.94 and 972.23

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Solution

The fourth proportional to 2,920.01, 4,379.94 and 972.23 is: 1,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.01 : 4,379.94 = 972.23 : x
  2. Step 2: Convert to fraction form
    2,920.01/4,379.94 = 972.23/x
  3. Step 3: Cross multiply
    2,920.01x = 4,379.94 × 972.23
  4. Step 4: Simplify right side
    2,920.01x = 4,258,287.17
  5. Step 5: Solve for x
    x = 4,258,287.17/2,920.01
  6. Step 6: Final answer
    x = 1,458.32

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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.