Home / 5,261.44-7,889.73-1,972.18

Finding the Fourth Proportional to 5,261.44, 7,889.73 and 1,972.18

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Solution

The fourth proportional to 5,261.44, 7,889.73 and 1,972.18 is: 2,957.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.44 : 7,889.73 = 1,972.18 : x
  2. Step 2: Convert to fraction form
    5,261.44/7,889.73 = 1,972.18/x
  3. Step 3: Cross multiply
    5,261.44x = 7,889.73 × 1,972.18
  4. Step 4: Simplify right side
    5,261.44x = 15,559,967.71
  5. Step 5: Solve for x
    x = 15,559,967.71/5,261.44
  6. Step 6: Final answer
    x = 2,957.36

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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.