Home / 3,426.08-5,139.72-1,478.36

Finding the Fourth Proportional to 3,426.08, 5,139.72 and 1,478.36

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Solution

The fourth proportional to 3,426.08, 5,139.72 and 1,478.36 is: 2,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.08 : 5,139.72 = 1,478.36 : x
  2. Step 2: Convert to fraction form
    3,426.08/5,139.72 = 1,478.36/x
  3. Step 3: Cross multiply
    3,426.08x = 5,139.72 × 1,478.36
  4. Step 4: Simplify right side
    3,426.08x = 7,598,356.46
  5. Step 5: Solve for x
    x = 7,598,356.46/3,426.08
  6. Step 6: Final answer
    x = 2,217.80

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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.