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Finding the Fourth Proportional to 6,871.93, 9,483.19 and 3,887.76

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Solution

The fourth proportional to 6,871.93, 9,483.19 and 3,887.76 is: 5,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.93 : 9,483.19 = 3,887.76 : x
  2. Step 2: Convert to fraction form
    6,871.93/9,483.19 = 3,887.76/x
  3. Step 3: Cross multiply
    6,871.93x = 9,483.19 × 3,887.76
  4. Step 4: Simplify right side
    6,871.93x = 36,868,366.75
  5. Step 5: Solve for x
    x = 36,868,366.75/6,871.93
  6. Step 6: Final answer
    x = 5,365.07

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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.