Home / 5,271.24-7,908.48-1,985.88

Finding the Fourth Proportional to 5,271.24, 7,908.48 and 1,985.88

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Solution

The fourth proportional to 5,271.24, 7,908.48 and 1,985.88 is: 2,979.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.24 : 7,908.48 = 1,985.88 : x
  2. Step 2: Convert to fraction form
    5,271.24/7,908.48 = 1,985.88/x
  3. Step 3: Cross multiply
    5,271.24x = 7,908.48 × 1,985.88
  4. Step 4: Simplify right side
    5,271.24x = 15,705,292.26
  5. Step 5: Solve for x
    x = 15,705,292.26/5,271.24
  6. Step 6: Final answer
    x = 2,979.43

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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.