Home / 6,645.15-9,170.40-3,812.98

Finding the Fourth Proportional to 6,645.15, 9,170.40 and 3,812.98

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Solution

The fourth proportional to 6,645.15, 9,170.40 and 3,812.98 is: 5,261.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.15 : 9,170.40 = 3,812.98 : x
  2. Step 2: Convert to fraction form
    6,645.15/9,170.40 = 3,812.98/x
  3. Step 3: Cross multiply
    6,645.15x = 9,170.40 × 3,812.98
  4. Step 4: Simplify right side
    6,645.15x = 34,966,551.79
  5. Step 5: Solve for x
    x = 34,966,551.79/6,645.15
  6. Step 6: Final answer
    x = 5,261.97

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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.