Home / 6,853.21-9,457.46-3,709.40

Finding the Fourth Proportional to 6,853.21, 9,457.46 and 3,709.40

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Solution

The fourth proportional to 6,853.21, 9,457.46 and 3,709.40 is: 5,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.21 : 9,457.46 = 3,709.40 : x
  2. Step 2: Convert to fraction form
    6,853.21/9,457.46 = 3,709.40/x
  3. Step 3: Cross multiply
    6,853.21x = 9,457.46 × 3,709.40
  4. Step 4: Simplify right side
    6,853.21x = 35,081,502.12
  5. Step 5: Solve for x
    x = 35,081,502.12/6,853.21
  6. Step 6: Final answer
    x = 5,118.99

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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.