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Finding the Fourth Proportional to 5,589.79, 8,368.27 and 3,918.10

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Solution

The fourth proportional to 5,589.79, 8,368.27 and 3,918.10 is: 5,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.79 : 8,368.27 = 3,918.10 : x
  2. Step 2: Convert to fraction form
    5,589.79/8,368.27 = 3,918.10/x
  3. Step 3: Cross multiply
    5,589.79x = 8,368.27 × 3,918.10
  4. Step 4: Simplify right side
    5,589.79x = 32,787,718.69
  5. Step 5: Solve for x
    x = 32,787,718.69/5,589.79
  6. Step 6: Final answer
    x = 5,865.64

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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.