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Finding the Fourth Proportional to 6,128.93, 8,457.62 and 3,477.20

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Solution

The fourth proportional to 6,128.93, 8,457.62 and 3,477.20 is: 4,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.93 : 8,457.62 = 3,477.20 : x
  2. Step 2: Convert to fraction form
    6,128.93/8,457.62 = 3,477.20/x
  3. Step 3: Cross multiply
    6,128.93x = 8,457.62 × 3,477.20
  4. Step 4: Simplify right side
    6,128.93x = 29,408,776.59
  5. Step 5: Solve for x
    x = 29,408,776.59/6,128.93
  6. Step 6: Final answer
    x = 4,798.35

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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.