Home / 5,240.34-7,865.01-2,776.89

Finding the Fourth Proportional to 5,240.34, 7,865.01 and 2,776.89

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Solution

The fourth proportional to 5,240.34, 7,865.01 and 2,776.89 is: 4,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.34 : 7,865.01 = 2,776.89 : x
  2. Step 2: Convert to fraction form
    5,240.34/7,865.01 = 2,776.89/x
  3. Step 3: Cross multiply
    5,240.34x = 7,865.01 × 2,776.89
  4. Step 4: Simplify right side
    5,240.34x = 21,840,267.62
  5. Step 5: Solve for x
    x = 21,840,267.62/5,240.34
  6. Step 6: Final answer
    x = 4,167.72

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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.