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Finding the Fourth Proportional to 6,128.65, 8,457.96 and 3,476.08

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Solution

The fourth proportional to 6,128.65, 8,457.96 and 3,476.08 is: 4,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.65 : 8,457.96 = 3,476.08 : x
  2. Step 2: Convert to fraction form
    6,128.65/8,457.96 = 3,476.08/x
  3. Step 3: Cross multiply
    6,128.65x = 8,457.96 × 3,476.08
  4. Step 4: Simplify right side
    6,128.65x = 29,400,545.60
  5. Step 5: Solve for x
    x = 29,400,545.60/6,128.65
  6. Step 6: Final answer
    x = 4,797.23

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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.