Home / 5,881.30-8,116.62-3,888.40

Finding the Fourth Proportional to 5,881.30, 8,116.62 and 3,888.40

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Solution

The fourth proportional to 5,881.30, 8,116.62 and 3,888.40 is: 5,366.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.30 : 8,116.62 = 3,888.40 : x
  2. Step 2: Convert to fraction form
    5,881.30/8,116.62 = 3,888.40/x
  3. Step 3: Cross multiply
    5,881.30x = 8,116.62 × 3,888.40
  4. Step 4: Simplify right side
    5,881.30x = 31,560,665.21
  5. Step 5: Solve for x
    x = 31,560,665.21/5,881.30
  6. Step 6: Final answer
    x = 5,366.27

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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.