Home / 5,261.23-7,889.54-1,972.02

Finding the Fourth Proportional to 5,261.23, 7,889.54 and 1,972.02

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Solution

The fourth proportional to 5,261.23, 7,889.54 and 1,972.02 is: 2,957.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.23 : 7,889.54 = 1,972.02 : x
  2. Step 2: Convert to fraction form
    5,261.23/7,889.54 = 1,972.02/x
  3. Step 3: Cross multiply
    5,261.23x = 7,889.54 × 1,972.02
  4. Step 4: Simplify right side
    5,261.23x = 15,558,330.67
  5. Step 5: Solve for x
    x = 15,558,330.67/5,261.23
  6. Step 6: Final answer
    x = 2,957.17

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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.