Home / 6,129.65-8,457.75-4,238.30

Finding the Fourth Proportional to 6,129.65, 8,457.75 and 4,238.30

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Solution

The fourth proportional to 6,129.65, 8,457.75 and 4,238.30 is: 5,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.65 : 8,457.75 = 4,238.30 : x
  2. Step 2: Convert to fraction form
    6,129.65/8,457.75 = 4,238.30/x
  3. Step 3: Cross multiply
    6,129.65x = 8,457.75 × 4,238.30
  4. Step 4: Simplify right side
    6,129.65x = 35,846,502.97
  5. Step 5: Solve for x
    x = 35,846,502.97/6,129.65
  6. Step 6: Final answer
    x = 5,848.05

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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.