Home / 4,839.40-7,258.02-1,721.35

Finding the Fourth Proportional to 4,839.40, 7,258.02 and 1,721.35

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Solution

The fourth proportional to 4,839.40, 7,258.02 and 1,721.35 is: 2,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.40 : 7,258.02 = 1,721.35 : x
  2. Step 2: Convert to fraction form
    4,839.40/7,258.02 = 1,721.35/x
  3. Step 3: Cross multiply
    4,839.40x = 7,258.02 × 1,721.35
  4. Step 4: Simplify right side
    4,839.40x = 12,493,592.73
  5. Step 5: Solve for x
    x = 12,493,592.73/4,839.40
  6. Step 6: Final answer
    x = 2,581.64

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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.