Home / 5,158.54-7,118.85-2,800.72

Finding the Fourth Proportional to 5,158.54, 7,118.85 and 2,800.72

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Solution

The fourth proportional to 5,158.54, 7,118.85 and 2,800.72 is: 3,865.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.54 : 7,118.85 = 2,800.72 : x
  2. Step 2: Convert to fraction form
    5,158.54/7,118.85 = 2,800.72/x
  3. Step 3: Cross multiply
    5,158.54x = 7,118.85 × 2,800.72
  4. Step 4: Simplify right side
    5,158.54x = 19,937,905.57
  5. Step 5: Solve for x
    x = 19,937,905.57/5,158.54
  6. Step 6: Final answer
    x = 3,865.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.