Home / 4,213.47-6,318.13-1,291.07

Finding the Fourth Proportional to 4,213.47, 6,318.13 and 1,291.07

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Solution

The fourth proportional to 4,213.47, 6,318.13 and 1,291.07 is: 1,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.47 : 6,318.13 = 1,291.07 : x
  2. Step 2: Convert to fraction form
    4,213.47/6,318.13 = 1,291.07/x
  3. Step 3: Cross multiply
    4,213.47x = 6,318.13 × 1,291.07
  4. Step 4: Simplify right side
    4,213.47x = 8,157,141.64
  5. Step 5: Solve for x
    x = 8,157,141.64/4,213.47
  6. Step 6: Final answer
    x = 1,935.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.