Home / 1,525.28-2,288.51-551.45

Finding the Fourth Proportional to 1,525.28, 2,288.51 and 551.45

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Solution

The fourth proportional to 1,525.28, 2,288.51 and 551.45 is: 827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.28 : 2,288.51 = 551.45 : x
  2. Step 2: Convert to fraction form
    1,525.28/2,288.51 = 551.45/x
  3. Step 3: Cross multiply
    1,525.28x = 2,288.51 × 551.45
  4. Step 4: Simplify right side
    1,525.28x = 1,261,984.64
  5. Step 5: Solve for x
    x = 1,261,984.64/1,525.28
  6. Step 6: Final answer
    x = 827.38

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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.