Home / 2,972.45-4,458.60-1,724.91

Finding the Fourth Proportional to 2,972.45, 4,458.60 and 1,724.91

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Solution

The fourth proportional to 2,972.45, 4,458.60 and 1,724.91 is: 2,587.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.45 : 4,458.60 = 1,724.91 : x
  2. Step 2: Convert to fraction form
    2,972.45/4,458.60 = 1,724.91/x
  3. Step 3: Cross multiply
    2,972.45x = 4,458.60 × 1,724.91
  4. Step 4: Simplify right side
    2,972.45x = 7,690,683.73
  5. Step 5: Solve for x
    x = 7,690,683.73/2,972.45
  6. Step 6: Final answer
    x = 2,587.32

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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.