Home / 3,429.95-5,143.70-1,240.52

Finding the Fourth Proportional to 3,429.95, 5,143.70 and 1,240.52

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Solution

The fourth proportional to 3,429.95, 5,143.70 and 1,240.52 is: 1,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.95 : 5,143.70 = 1,240.52 : x
  2. Step 2: Convert to fraction form
    3,429.95/5,143.70 = 1,240.52/x
  3. Step 3: Cross multiply
    3,429.95x = 5,143.70 × 1,240.52
  4. Step 4: Simplify right side
    3,429.95x = 6,380,840.11
  5. Step 5: Solve for x
    x = 6,380,840.11/3,429.95
  6. Step 6: Final answer
    x = 1,860.33

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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.