Home / 3,429.10-5,142.58-1,237.54

Finding the Fourth Proportional to 3,429.10, 5,142.58 and 1,237.54

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Solution

The fourth proportional to 3,429.10, 5,142.58 and 1,237.54 is: 1,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.10 : 5,142.58 = 1,237.54 : x
  2. Step 2: Convert to fraction form
    3,429.10/5,142.58 = 1,237.54/x
  3. Step 3: Cross multiply
    3,429.10x = 5,142.58 × 1,237.54
  4. Step 4: Simplify right side
    3,429.10x = 6,364,148.45
  5. Step 5: Solve for x
    x = 6,364,148.45/3,429.10
  6. Step 6: Final answer
    x = 1,855.92

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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.