Home / 5,295.18-7,309.80-3,171.72

Finding the Fourth Proportional to 5,295.18, 7,309.80 and 3,171.72

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Solution

The fourth proportional to 5,295.18, 7,309.80 and 3,171.72 is: 4,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.18 : 7,309.80 = 3,171.72 : x
  2. Step 2: Convert to fraction form
    5,295.18/7,309.80 = 3,171.72/x
  3. Step 3: Cross multiply
    5,295.18x = 7,309.80 × 3,171.72
  4. Step 4: Simplify right side
    5,295.18x = 23,184,638.86
  5. Step 5: Solve for x
    x = 23,184,638.86/5,295.18
  6. Step 6: Final answer
    x = 4,378.44

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1.5x scale

Why These Related Problems?

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