Home / 4,770.56-7,155.36-2,172.80

Finding the Fourth Proportional to 4,770.56, 7,155.36 and 2,172.80

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Solution

The fourth proportional to 4,770.56, 7,155.36 and 2,172.80 is: 3,258.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.56 : 7,155.36 = 2,172.80 : x
  2. Step 2: Convert to fraction form
    4,770.56/7,155.36 = 2,172.80/x
  3. Step 3: Cross multiply
    4,770.56x = 7,155.36 × 2,172.80
  4. Step 4: Simplify right side
    4,770.56x = 15,547,166.21
  5. Step 5: Solve for x
    x = 15,547,166.21/4,770.56
  6. Step 6: Final answer
    x = 3,258.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.