Home / 5,865-8,091.24-3,847.68

Finding the Fourth Proportional to 5,865, 8,091.24 and 3,847.68

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Solution

The fourth proportional to 5,865, 8,091.24 and 3,847.68 is: 5,308.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,865 : 8,091.24 = 3,847.68 : x
  2. Step 2: Convert to fraction form
    5,865/8,091.24 = 3,847.68/x
  3. Step 3: Cross multiply
    5,865x = 8,091.24 × 3,847.68
  4. Step 4: Simplify right side
    5,865x = 31,132,502.32
  5. Step 5: Solve for x
    x = 31,132,502.32/5,865
  6. Step 6: Final answer
    x = 5,308.18

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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.