Home / 3,210.08-4,812.76-1,261.28

Finding the Fourth Proportional to 3,210.08, 4,812.76 and 1,261.28

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Solution

The fourth proportional to 3,210.08, 4,812.76 and 1,261.28 is: 1,890.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.08 : 4,812.76 = 1,261.28 : x
  2. Step 2: Convert to fraction form
    3,210.08/4,812.76 = 1,261.28/x
  3. Step 3: Cross multiply
    3,210.08x = 4,812.76 × 1,261.28
  4. Step 4: Simplify right side
    3,210.08x = 6,070,237.93
  5. Step 5: Solve for x
    x = 6,070,237.93/3,210.08
  6. Step 6: Final answer
    x = 1,890.99

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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.