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Finding the Fourth Proportional to 5,869.40, 8,101.08 and 3,880.24

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Solution

The fourth proportional to 5,869.40, 8,101.08 and 3,880.24 is: 5,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.40 : 8,101.08 = 3,880.24 : x
  2. Step 2: Convert to fraction form
    5,869.40/8,101.08 = 3,880.24/x
  3. Step 3: Cross multiply
    5,869.40x = 8,101.08 × 3,880.24
  4. Step 4: Simplify right side
    5,869.40x = 31,434,134.66
  5. Step 5: Solve for x
    x = 31,434,134.66/5,869.40
  6. Step 6: Final answer
    x = 5,355.60

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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.