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Finding the Fourth Proportional to 5,387.71, 8,067.78 and 4,888.34

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Solution

The fourth proportional to 5,387.71, 8,067.78 and 4,888.34 is: 7,320.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.71 : 8,067.78 = 4,888.34 : x
  2. Step 2: Convert to fraction form
    5,387.71/8,067.78 = 4,888.34/x
  3. Step 3: Cross multiply
    5,387.71x = 8,067.78 × 4,888.34
  4. Step 4: Simplify right side
    5,387.71x = 39,438,051.69
  5. Step 5: Solve for x
    x = 39,438,051.69/5,387.71
  6. Step 6: Final answer
    x = 7,320.00

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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.