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Finding the Fourth Proportional to 3,017.48, 4,525.56 and 826.40

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Solution

The fourth proportional to 3,017.48, 4,525.56 and 826.40 is: 1,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.48 : 4,525.56 = 826.40 : x
  2. Step 2: Convert to fraction form
    3,017.48/4,525.56 = 826.40/x
  3. Step 3: Cross multiply
    3,017.48x = 4,525.56 × 826.40
  4. Step 4: Simplify right side
    3,017.48x = 3,739,922.78
  5. Step 5: Solve for x
    x = 3,739,922.78/3,017.48
  6. Step 6: Final answer
    x = 1,239.42

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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.