Home / 6,315.75-9,475.58-2,155.76

Finding the Fourth Proportional to 6,315.75, 9,475.58 and 2,155.76

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Solution

The fourth proportional to 6,315.75, 9,475.58 and 2,155.76 is: 3,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.75 : 9,475.58 = 2,155.76 : x
  2. Step 2: Convert to fraction form
    6,315.75/9,475.58 = 2,155.76/x
  3. Step 3: Cross multiply
    6,315.75x = 9,475.58 × 2,155.76
  4. Step 4: Simplify right side
    6,315.75x = 20,427,076.34
  5. Step 5: Solve for x
    x = 20,427,076.34/6,315.75
  6. Step 6: Final answer
    x = 3,234.31

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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.