Home / 3,472.36-5,208.28-1,280.68

Finding the Fourth Proportional to 3,472.36, 5,208.28 and 1,280.68

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Solution

The fourth proportional to 3,472.36, 5,208.28 and 1,280.68 is: 1,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.36 : 5,208.28 = 1,280.68 : x
  2. Step 2: Convert to fraction form
    3,472.36/5,208.28 = 1,280.68/x
  3. Step 3: Cross multiply
    3,472.36x = 5,208.28 × 1,280.68
  4. Step 4: Simplify right side
    3,472.36x = 6,670,140.03
  5. Step 5: Solve for x
    x = 6,670,140.03/3,472.36
  6. Step 6: Final answer
    x = 1,920.92

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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.