Home / 2,130.16-3,195.12-1,269.96

Finding the Fourth Proportional to 2,130.16, 3,195.12 and 1,269.96

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Solution

The fourth proportional to 2,130.16, 3,195.12 and 1,269.96 is: 1,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.16 : 3,195.12 = 1,269.96 : x
  2. Step 2: Convert to fraction form
    2,130.16/3,195.12 = 1,269.96/x
  3. Step 3: Cross multiply
    2,130.16x = 3,195.12 × 1,269.96
  4. Step 4: Simplify right side
    2,130.16x = 4,057,674.60
  5. Step 5: Solve for x
    x = 4,057,674.60/2,130.16
  6. Step 6: Final answer
    x = 1,904.87

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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.