Home / 1,521.78-2,096.46-1,254.48

Finding the Fourth Proportional to 1,521.78, 2,096.46 and 1,254.48

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Solution

The fourth proportional to 1,521.78, 2,096.46 and 1,254.48 is: 1,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.78 : 2,096.46 = 1,254.48 : x
  2. Step 2: Convert to fraction form
    1,521.78/2,096.46 = 1,254.48/x
  3. Step 3: Cross multiply
    1,521.78x = 2,096.46 × 1,254.48
  4. Step 4: Simplify right side
    1,521.78x = 2,629,967.14
  5. Step 5: Solve for x
    x = 2,629,967.14/1,521.78
  6. Step 6: Final answer
    x = 1,728.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.