Home / 3,426.71-5,140.83-1,235.45

Finding the Fourth Proportional to 3,426.71, 5,140.83 and 1,235.45

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Solution

The fourth proportional to 3,426.71, 5,140.83 and 1,235.45 is: 1,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.71 : 5,140.83 = 1,235.45 : x
  2. Step 2: Convert to fraction form
    3,426.71/5,140.83 = 1,235.45/x
  3. Step 3: Cross multiply
    3,426.71x = 5,140.83 × 1,235.45
  4. Step 4: Simplify right side
    3,426.71x = 6,351,238.42
  5. Step 5: Solve for x
    x = 6,351,238.42/3,426.71
  6. Step 6: Final answer
    x = 1,853.45

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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.