Home / 5,178.55-7,762.06-3,101.35

Finding the Fourth Proportional to 5,178.55, 7,762.06 and 3,101.35

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Solution

The fourth proportional to 5,178.55, 7,762.06 and 3,101.35 is: 4,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.55 : 7,762.06 = 3,101.35 : x
  2. Step 2: Convert to fraction form
    5,178.55/7,762.06 = 3,101.35/x
  3. Step 3: Cross multiply
    5,178.55x = 7,762.06 × 3,101.35
  4. Step 4: Simplify right side
    5,178.55x = 24,072,864.78
  5. Step 5: Solve for x
    x = 24,072,864.78/5,178.55
  6. Step 6: Final answer
    x = 4,648.57

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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.