Home / 6,140.81-8,474.09-3,487.94

Finding the Fourth Proportional to 6,140.81, 8,474.09 and 3,487.94

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Solution

The fourth proportional to 6,140.81, 8,474.09 and 3,487.94 is: 4,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.81 : 8,474.09 = 3,487.94 : x
  2. Step 2: Convert to fraction form
    6,140.81/8,474.09 = 3,487.94/x
  3. Step 3: Cross multiply
    6,140.81x = 8,474.09 × 3,487.94
  4. Step 4: Simplify right side
    6,140.81x = 29,557,089.44
  5. Step 5: Solve for x
    x = 29,557,089.44/6,140.81
  6. Step 6: Final answer
    x = 4,813.22

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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.