Home / 6,345.46-9,520.92-3,420.34

Finding the Fourth Proportional to 6,345.46, 9,520.92 and 3,420.34

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Solution

The fourth proportional to 6,345.46, 9,520.92 and 3,420.34 is: 5,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.46 : 9,520.92 = 3,420.34 : x
  2. Step 2: Convert to fraction form
    6,345.46/9,520.92 = 3,420.34/x
  3. Step 3: Cross multiply
    6,345.46x = 9,520.92 × 3,420.34
  4. Step 4: Simplify right side
    6,345.46x = 32,564,783.51
  5. Step 5: Solve for x
    x = 32,564,783.51/6,345.46
  6. Step 6: Final answer
    x = 5,131.98

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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.