Home / 3,429.34-5,140.91-1,236.53

Finding the Fourth Proportional to 3,429.34, 5,140.91 and 1,236.53

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Solution

The fourth proportional to 3,429.34, 5,140.91 and 1,236.53 is: 1,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.34 : 5,140.91 = 1,236.53 : x
  2. Step 2: Convert to fraction form
    3,429.34/5,140.91 = 1,236.53/x
  3. Step 3: Cross multiply
    3,429.34x = 5,140.91 × 1,236.53
  4. Step 4: Simplify right side
    3,429.34x = 6,356,905.39
  5. Step 5: Solve for x
    x = 6,356,905.39/3,429.34
  6. Step 6: Final answer
    x = 1,853.68

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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.