Home / 3,406.56-5,111.10-1,214.70

Finding the Fourth Proportional to 3,406.56, 5,111.10 and 1,214.70

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Solution

The fourth proportional to 3,406.56, 5,111.10 and 1,214.70 is: 1,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.56 : 5,111.10 = 1,214.70 : x
  2. Step 2: Convert to fraction form
    3,406.56/5,111.10 = 1,214.70/x
  3. Step 3: Cross multiply
    3,406.56x = 5,111.10 × 1,214.70
  4. Step 4: Simplify right side
    3,406.56x = 6,208,453.17
  5. Step 5: Solve for x
    x = 6,208,453.17/3,406.56
  6. Step 6: Final answer
    x = 1,822.50

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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.