Home / 1,535.55-2,119.07-872.44

Finding the Fourth Proportional to 1,535.55, 2,119.07 and 872.44

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Solution

The fourth proportional to 1,535.55, 2,119.07 and 872.44 is: 1,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.55 : 2,119.07 = 872.44 : x
  2. Step 2: Convert to fraction form
    1,535.55/2,119.07 = 872.44/x
  3. Step 3: Cross multiply
    1,535.55x = 2,119.07 × 872.44
  4. Step 4: Simplify right side
    1,535.55x = 1,848,760.34
  5. Step 5: Solve for x
    x = 1,848,760.34/1,535.55
  6. Step 6: Final answer
    x = 1,203.97

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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.