Home / 6,108.32-9,155.44-3,138.40

Finding the Fourth Proportional to 6,108.32, 9,155.44 and 3,138.40

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Solution

The fourth proportional to 6,108.32, 9,155.44 and 3,138.40 is: 4,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108.32 : 9,155.44 = 3,138.40 : x
  2. Step 2: Convert to fraction form
    6,108.32/9,155.44 = 3,138.40/x
  3. Step 3: Cross multiply
    6,108.32x = 9,155.44 × 3,138.40
  4. Step 4: Simplify right side
    6,108.32x = 28,733,432.90
  5. Step 5: Solve for x
    x = 28,733,432.90/6,108.32
  6. Step 6: Final answer
    x = 4,703.98

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1.5x scale

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.