Home / 5,271.17-7,900.66-1,982.16

Finding the Fourth Proportional to 5,271.17, 7,900.66 and 1,982.16

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Solution

The fourth proportional to 5,271.17, 7,900.66 and 1,982.16 is: 2,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.17 : 7,900.66 = 1,982.16 : x
  2. Step 2: Convert to fraction form
    5,271.17/7,900.66 = 1,982.16/x
  3. Step 3: Cross multiply
    5,271.17x = 7,900.66 × 1,982.16
  4. Step 4: Simplify right side
    5,271.17x = 15,660,362.31
  5. Step 5: Solve for x
    x = 15,660,362.31/5,271.17
  6. Step 6: Final answer
    x = 2,970.95

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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.