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Finding the Fourth Proportional to 3,987.24, 5,973.42 and 2,888.92

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Solution

The fourth proportional to 3,987.24, 5,973.42 and 2,888.92 is: 4,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.24 : 5,973.42 = 2,888.92 : x
  2. Step 2: Convert to fraction form
    3,987.24/5,973.42 = 2,888.92/x
  3. Step 3: Cross multiply
    3,987.24x = 5,973.42 × 2,888.92
  4. Step 4: Simplify right side
    3,987.24x = 17,256,732.51
  5. Step 5: Solve for x
    x = 17,256,732.51/3,987.24
  6. Step 6: Final answer
    x = 4,327.99

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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.