Home / 5,177.63-7,145.67-3,188.15

Finding the Fourth Proportional to 5,177.63, 7,145.67 and 3,188.15

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Solution

The fourth proportional to 5,177.63, 7,145.67 and 3,188.15 is: 4,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.63 : 7,145.67 = 3,188.15 : x
  2. Step 2: Convert to fraction form
    5,177.63/7,145.67 = 3,188.15/x
  3. Step 3: Cross multiply
    5,177.63x = 7,145.67 × 3,188.15
  4. Step 4: Simplify right side
    5,177.63x = 22,781,432.08
  5. Step 5: Solve for x
    x = 22,781,432.08/5,177.63
  6. Step 6: Final answer
    x = 4,399.98

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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.